Edible plants on the farm

Please don’t use this blog to identify edible plants!

The intend of this article is not to give a full description of each plant and all its uses, I just want to share those plants that we, as occupants of the property, are nibbling on. I have provided links below where you can find more information.

Scelerocarya birrea – Marula (Afrikaans – Maroela)

Marula trees are well-known for their edible fruit. A wide variety of animals rely on marulas as a food source. Apart form us, we have observed the following mammals eating the fruit (Vervet monkeys, Impala, Zebra, Giraffe, Bush pig) and saw evidence of mice or other small rodents eating the nutty kernels.

The fruit of the Marula tree is commercially used in the making of liquor (liqueurs and beer) and marula jelly, a delicacy enjoyed like jam. The fruit pulp is rich in vitamin C and is sold as an ingredient of fruit blends. I have made Marula jelly, but it is labour intensive for only a small amount of finished product. The nutty kernels have a rich nice taste. It is used in the production of Marula oil, an ingredient of skin cosmetics.

Not all trees bear fruit though. They are dioecious, which means they have a specific gender on a tree.

(somehow my photo of the marula fruit was lost, I will post one next year Feb/Mar when they are in season)

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Although the outside is weathered and discoloured, two of the three holes still contain the nutty material

Berchemia zeyheri – Red ivory, Purple Ivory, Pink Ivory (Afrikaans – Rooi-ivoor)

The trees are too high to reach the fruit, I eat the ones on the ground that are still fresh. The fruit is sweet and refreshing.

I have tried to cook a syrup from these. It was nice and sweet but the amount was not the effort worth.

I have tried to cook a syrup from these. It was nice and sweet but the amount was not worth the effort.

I have to compete with our dogs for a handful of the sweet lovely fruit

I have to compete with our dogs for a handful of the sweet lovely fruit

Ximenia caffra – Sour plum, Wild plum, Monkey plum (Afrikaans – Suurpruim)

The ripe fruit of the Sour plum is very rich in vitamin C, it is not called sour without a reason! It is said to be high in potassium and also to contain protein. We have a ritual in summer to introduce unwise visitors to our lovely ‘Bushveld cherries’ and only a few brave ones will keep eating for more than a few seconds. It can be used to make jam, but I try to leave the wild fruit for the wild animals, it is after all their source of food.

The nuts are edible and have a very high oil content. It is used as an essential oil in the industry.

Ximenia caffra P1080341

Some years the tree bears these beautiful fruit in abundance and sometimes almost none

Cyphostemma cirrhosum (Afrikaans – Droog-my-keel, Wildedruif)

Since I have read that the berries of this plant is edible, I have tried it. I didn’t like it though, it is not sweet and has a strange tart taste. I will have to be hungry and without other nutrition before I will eat it again…

It is much more appealing to the eye than to the taste buds...

It is much more appealing to the eye than to the taste buds…

Annona senegalensis – Custard apple (Afrikaans – Wildesuikerappel, Vla-appel)

The Custard apple is a lovely sweet tasting fruit. The trees on our farm bear only a few fruit at a time and the monkeys love it, as do I when I am lucky to find a ripe one.

The ripe fruit is rare to find - the monkeys are quicker than me

The ripe fruit is rare to find – the monkeys are quicker than me

The green fruit

The green fruit

Vangueria infausta – Wild medlar (Afrikaans – Wildemispel)

The wild medlar is one of my favourites. It has a sweet-sour taste when ripe and is also favoured by bushbabies, monkeys and a variety of birds.

I prefer the plump fresh fruit while my husband prefer it dried out

I prefer the plump fresh fruit while my husband prefer it dried out

Lannea edulis – Wild grape (Afrikaans – Wildedruif)

This is an extremely nice wild fruit, and although not related to real grapes, the taste and colour of the ripe fruit is very similar to Catawba grapes, which is called ‘Glippertjies’ in Afrikaans. They grow on a dwarf shrub and sometimes there are no leaves yet when the fruit develops, like in the first picture below.

It is favoured by Vervet monkeys and Bushbabies and sometimes more than one season pass before I am lucky to find a few ripe treasures, and never when I have my camera close!

Lannea edulis P9270886

The ripe fruit is much more plump and purple.

Lannea edulis P9270888

Hard to find, but worthy the search…

Psidium guajava – Guava (Afrikaans – Koejawel)

The guava is regarded as an alien invader in the Lowveld and we try to eradicate it. Our farm is dry and luckily the guava trees are not successful here. The few fruits that may form is eaten green by the monkeys and I have never encountered a ripe fruit to photograph.

It has a lovely flower :)

It has a lovely flower 🙂

Opuntia sp – Prickly pear (Afrikaans – Turksvy)

In the almost twelve years that we have been on the farm, I have only found ripe fruit twice. Opuntia is also regarded as invader plants, but they are not successful here.

This one was eaten... by me!

This one was eaten… by me!

Englerophytum magalismontanum – Transvaal milkplum (Afrikaans – Stamvrug)

I know about only one small tree on the farm and it is struggling. It does not bear fruit every year, but even the few times it did so far in the last twelve years, I was lucky only twice to get a few.

I don’t have any pictures of the fruit.

Englerophytum magalismontanum P7100576

Solanum retroflexum – Nightshade (Afrikaans – Nastergal)

The green berries are poisonous and should be avoided. The dark purple-black berries are edible but I don’t like the taste. It cooks into the most incredible jam though! It is labour intensive to harvest the small berries and then clean it, but the syrupy jam is worth the effort.

KDP_0477

Lovely shiny purple-black berries

Corchorus tridens

Although I haven’t tasted this plant yet, my workers harvest is as a spinach type vegetable and they use bicarbonate of soda in stead of table salt in the cooking process. Emelinah Mathebula says I won’t like it, because it cooks like a snail (meaning that it turns out slimy)

Corchorus tridens IMG_7330

I have seen it offered by the street vendors in town

Corchorus tridens IMG_7331

The flower of Corchorus tridens

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Corchorus confusus is a similar species. Emelinah says it is also edible, but they prefer C. tridens

Athrixia phylicoides – Bushman’s Tea (Afrikaans –  Boesmanstee, Bostee)

These lovely herbs are harvested by Emelinah as brooms to swipe their yards. However, the general name is also descriptive and I have made an infusion and it does indeed make a very sweet smelling tea. So nice that a friend of mine wants me to sell it…

Athrixia phylicoides2

Dainty pink flowers

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Easily identifiable by the leaves that has a shiny upper part and a white velvety bottom part.

More information about the uses and medicinal value of the above-mentioned plants:

 

 

 

 

Acanthaceae

Order:   Plantae

Family: Acanthaceae

Species:

  1. Barleria ovata
  2. Blepharis subvolubilis subvolubilis
  3. Crabbea angustifolia
  4. Crabbea hirsuta
  5. Crossandra greenstockii
  6. Dyschoriste burchellii
  7. Hypoestes forskaolii
  8. Justicia anagalloides
  9. Ruellia cordata
  10. Ruellia stenophylla
  11. Thunbergia atriplicifolia
  12. Thunbergia neglecta

The plants can be shrubs, climbers or herbs. No stipules present on the opposite leaves. Inflorescence may often have large leavy bracts.

This is  an important familyfor me for various reasons. Firstly, two of my favourite plants occurs on this list, namely Crossandra greenstockii and Blepharis subvolubilis subvolubilis. They were some of the first plants that caught my eye when we moved here. Secondly, two of my favourite caterpillars (Rhanidophora phedonia and Rhanidophora ridens) feed on Thungergia atriplicifolia. Thirdly, they are just so neat and pretty!

 Barleria ovata

Often called Grassland Barleria or Bush Viola (Bosviooltjie in Afrikaans).  The bright purple flowers adorns the veld late summer to early autumn (Dec-Mar).

Barleria ovata

Barleria ovata

Blepharis subvolubilis subvolubilis

The  toothed leaves are leathery and glossy.

Crabbea angustifolia

Lanceolate leaves.

Crabbea hirsuta

Perennial herb. General name Prickle Head. Inflorescences densely clustered, sessile. Flowers white with a yellow centre, borne amongst large leaf-like bracts with spiny margins

Crossandra greenstockii

The photos don’t do justice to the brilliant orange-red colour of this exquisite veld flower. Bushveld Crossandra or Rooiblom in Afrikaans. 

Dyschoriste burchellii

(was Chaetacanthus burchellii). Many green to reddish stems, slightly hairy throughout.  

Hypoestes forskaolii

White Ribbon bush.

Justicia anagalloides

Abundant on the property. Small plant, small lovely white flowers with pinkish nectar guides. 

Ruellia cordata

 

Ruellia stenophylla

 

Thunbergia atriplicifolia

Natal Primrose. Abundant on the property. Apparently it is utilized in traditional medicines as a love potion, although I could not get a reference which plant part are used. Green fruits are used for a hair wash. Host plant for Rhanidophora phedonia and R. ridens (Dice Moths). We had a huge veld fire last year and I found no Dice Moth larvae after that. May they return soon… Rhanidophora ridens is rare on our property, while R. phedonia is abundant. I also found and raised two caterpillars of Owlet Moths (Noctuidae). The moths are very much alike, but the caterpillars were not exactly the same.

 

Thunbergia neglecta

Creeper. I have found it in only two places on the farm.

T

Thunbergia neglecta

News clip

I have registered a project on the iSpot Biodiversity website for Aylestone 8. What a nice new feature this is! Before I post anything here, I usually post a node there to verify my identification, or to get an identification if I can’t find the name of a specimen. If you visit the project you will see how much species I have already submitted, and will appear in the next few months here.

I am currently working on the following families: Acanthaceae, Iridaceae, Verbenaceae and all alien invader species (which we are trying our best to eradicate)

See you soon!

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Achatinid snails

Order: Mollusca

  • Eupulmonata
    • Stylommatophora
      • Achatinoidea

Family:             Achatinidae

Species:

Achatina immaculata

Achatina transvaalensis

GENERAL INFORMATION ABOUT ACHATINIDAE

The Achatinidae have medium to very large shells, acuminate ovate in shape and often decorated with coloured vertical streaks or flames. About 200 species of Achatinidae occur in Sub-Saharan Africa. The genera include Achatina, Metachatina, Archachatina, Lissachatina and Cochlitoma. More than 30 species are found in South Africa.

The reproductive opening is on the head of Achatinid snails. They are hermaphrodites. Most people then ask if they can fertilize themselves. No. But they do contain male and female reproductive organs and when they mate they can fertilize each other. The sperms develops first in the hermaphroditic gland (the gonad) and a sperm package will be transferred to the other snail where the sperm will be kept in a special sperm pouch in the other snails genital organ. It can be kept for a very long time before fertilization takes place when circumstances are favorable. The egg cells will develop from the same hermaphroditic gland and will then be laid.

The spot behind the eye on the right hand side is the reproductive opening

The spot behind the eye on the right hand side is the reproductive opening. When you see something white protruding here, it is the ‘penis’

ACHATINIDAE ON OUR PROPERTY

We have two Achatinid species on our farm and both is a rarity to find.

Achatina immaculata – Lamarck, 1822 (Syn. Achatina panthera – Ferussac, 1822)

This variable species has a large, solid shell with a colouration that depends on age. Younger shells (< 80 mm) and most specimens have the typical achatinid flammate patterning of light and dark brown. However, this is lost in most mature specimens. In some specimens the flames become so closely spaced that the shell seems uniformly brown. In addition, many mature specimens have shells that have lost the periostracum due to weathering, and have become a uniform white or cream.

Achatina immaculata

Achatina immaculata

Sun bleached shell

Sun bleached shell

 

It always has a pink columella which is truncated at the base. The shell varies from obese to slender. The only other local Achatinid with a pink or purple columella is Burtoa nilotica, found in Zimbabwe and Zambia. This species does not have a basal truncation to the columella, is very obese and has a white exterior. The colouration on the columella quickly fades when the animal dies, especially when it is exposed to sunlight.

Pink columella beautifully exposed

Pink columella beautifully exposed

The animal has a brownish foot. A darker brown longitudinal stripe runs from between the tentacles back into the shell. On either side of the stripe are two light yellow or brown bands.

The dark longitudinal line is clearly visible in this photo

The dark longitudinal line is clearly visible in this photo

Many, many yellow pea sized eggs are laid in loose soil and can remain fertile for years until conditions are favourable for the baby snails to survive.

From the front

From the front

The part just out of the shell is called the mantle of the shell. The mantle is responible to secrete the shell. This snail just didn't want to retract fully to expose the pink columella.

The part just protruding out of the shell is called the mantle. The mantle is responsible to secrete the shell. This snail just didn’t want to retract fully to expose the pink columella.

The animal will hibernate in winter and aestivate in summer if it is too hot. It will crawl into the soil, retract completely into the shell and excess mucous will be secreted by the mantle. It will harden to form the epiphragm with only a small slither left for oxygen to enter into the respiratory opening called the pneumostome or breathing pore. Yes, these snails have ‘lungs’. A highly vascularized area of tissue inside the mantle cavity functions as a single lung.

Pulmonary opening in the mantle.

Respiratory opening in the mantle.

Pulmonary opening closed

Respiratory opening closed

Achatina immaculata is a very special and cultural important shell in Africa.

The people who lived in the Iron Age already used A. Immaculata for various purposes.

  • Achatina species have been utilized as food, as it still is in certain African communities.
  • The shells also deserved a place as tool. The women used the shells to dig clay for their clay pots. A freshwater bivalve species (Spathopsis wahlbergi) was used to burnish the clay pots.
  • Beads were made from the shell.
  • On the farm Greenswald in the Northern Province at the Mapungubwe archaeological site, A. immaculata, other cultural objects and animal remains have been found buried with human remains. The shells, animals and other objects were probably used as offerings, and that mean that the shells were of big importance to the people. The Mapungubwe people lived about 1100 a.d.
  • Later uses that have been recorded are utilization as containers for example snuff, with the aperture (opening) sealed with moss or something similar.
  • The big shells also served as a cup, and when the apex was removed; even an infant could drink from it when the mother was unable to nurse the baby. With the open apex the shell is also used to administer medication to the ear.
  • Even whole shells were strung, but with a complete different purpose. The rope was fitted to a tree or something similar and rattled to chase away hippos from cultivated fields.

Achatina transvaalensis – Smith, 1878 (Synonym A. subcylindrica, Preston, 1909)

Achatina transvaalensis with periostracum

Achatina transvaalensis with periostracum

Achatina transvaalensis without periostracum

Achatina transvaalensis without periostracum

This is a medium sized snail and although I often find empty shells, it is a rarity to find a live specimen. And they are camera shy too! Once retracted into the shell, it takes hours before they emerge again. I have kept one in a container for a while, but it didn’t want to eat the ‘artificial’ food like cucumbers that the A. immaculata like so much, and I let it go free to where it belongs. Unfortunately my computer hard disk with those pictures was damaged and I lost my photos of the live specimens. I will update this page when I find a live one again.

It is a fairly small cylindrical Achatina, unicoulored pale buff with 7-8 whorls and sculptured with fine granulation above the periphery.

The foot is very pale, almost yellowish in colour, and it also has a darker longitudinal stripe that runs from between the tentacles back into the shell like most Achatinids.

ACHATINIDS AS PETS

In Europe Achatinid snails are very often kept as pets. I have very successfully kept Achatina immaculata, Achatina smithii, Metachatina kraussii and Achatina vestita as pets. Although they were kept in the same container, they never interbred. I fed them cucumbers, watermelon peels, lettuce and papaja. To supply calcium for optimum shell formation I added cuttlefish bones to their diet. I was very sad when they all died simultaneously after being kept for almost five years. My assumption was that something in their food  had traces of pesticides, although I can’t prove that.

It is a very big responsibility to keep snails as pets, as escapees can be introduced in areas where they are not supposed to be and then proliferate. Do a search for Achatina fulica to see how much havoc has been caused in America where they are now classified as alien invader species.

LAND SNAILS IN DERMATOLOGY

If you consider snails as yucky organisms, think twice.  The skin cream you are using just might contain snail slime! Products with up to 80% snail slime from the Helix aspersa snail are sold worldwide. In Japan snail slime is taken to the ultimate – you can visit a beauty salon and get an ‘escargot facial’ where live snails will crawl all over your face to benefit directly from their mucous secretions.

FOR MORE INFORMATION

  1. http://molluscs.at/gastropoda/terrestrial.html?/gastropoda/terrestrial/achatinidae.html
  2. http://newsfeed.time.com/2013/07/17/snail-slime-facial-coats-skin-in-mollusk-mucus/
  3. http://www.elicina.co.za/benefits.html
  4. http://www.worldwidewounds.com/2013/July/Thomas/slug-steve-thomas.html
  5.  Mapungubwe An Archeozoological Interpretation of an Iron Age Community (Voigt, Elizabeth A. 1983) Transvaal Museum
  6. The Achatinid landsnails of South Africa (M.B Cortie & D. Aiken) – Special Publication no. 7 of the Conchological Society of Southern Africa.
  7. The Achatinidae of Southern Africa. Mike Cortie. The Strandloper. Issue 247, Sep 1996. Bulletin of the Conchological Society of Southern Africa.
  8. Update on the Achatinidae of Southern Africa. Mike Cortie. The Strandloper. Issue 250, Sep 1996. Bulletin of the Conchological Society of Southern Africa.

Sawfly

Order:   Hymenoptera

Family: Argidae

In December 2012 I found a larva that didn’t quite fit the profile of a caterpillar. I couldn’t resist the temptation to rear it to adulthood to see what the adult looks like.

Sawfly larva

Sawfly larva

Saw fly larva

Sawfly larva

I found it browsing on Diospyros lycioides subsp. nitens leaves.

Diospyros lycioides subsp. nitens (Star apple)

Diospyros lycioides subsp. nitens (Star apple)

Within two days of capture the larva disappeared into the soil inside the container. I gave it a few days and dug up a neat little cocoon in the loose soil.

Sawfly cocoon

Sawfly cocoon

Much to my surprize the adult looked like a cross between a fly and a wasp. The flagellum is fused into one extended banana shaped segment and it has no “wasp-waist” between the thorax and abdomen, as is typical of all other Hymenoptera. I could only see that from the side, from the top it looked like a wasp to me.

Sawfly

Sawfly

Sawfly

Sawfly

According to a website I visited in January 2013, they are often described as stingless wasps and get their common name from the female’s ovipositor, which unfolds like a jackknife. It functions like a saw blade, allowing her to cut into stems or foliage and deposit her eggs.

Flies from the order Diptera have a single pair of wings. When I photographed this specimen, it unfolded the wings every time my camera flashed to reveal two sets of wings.

Sawfly

Sawfly

Sawfly larvae have six or more pairs of abdominal prolegs, whereas caterpillars have five or less. The sawflies don’t have tiny hooks on the end of the prolegs like those of caterpillars.

Another feature to differentiate between caterpillars and sawfly larvae are the number of eyes called stemmata. The caterpillars have six and the sawfly larvae two.

Although this little critter hasn’t been identified up to species level, I am happy that I have broadened my knowledge about the diversity of the insects found on our property.

Rhanidophora phedonia

Order:   Lepidoptera

Family:  Noctuidae

Species:           Rhanidophora phedonia (Shortsnout Dice moth)

Patience! Eventually I can verify how the moth of this caterpillar looks like. I caught a caterpillar and let it pupate in a container. The cocoon was made from fine silk threads and covered in sand on the outside. It was on the surface attached to some of the dead leaves in the container.

Visit the link for another post on Rhanidophora

Weekly photochallenge: green (creepy crawlies)

http://dailypost.wordpress.com/2012/11/16/weekly-photo-challenge-green/

Weekly photo challenge: Green (flowers)

Wild flowers from my farm

http://dailypost.wordpress.com/2012/11/16/weekly-photo-challenge-green/

Cyphostemma cirrhosum

Family: Vitaceae

Species: Cyphostemma cirrhosum (Droog-my-keel, Wildedruif)

Every now and then I find something that tickles me… and today I have discovered one… a lovely name for one of the plants on my farm.

Do you know a plant with the name ‘Droog-my-keel’ (Afrikaans, directly translated it mean dry-my-throat)? What a lovely Afrikaans name!

According to Elsa Pooley in A Field Guide to Wild Flowers of Kwazulu-Natal and the Eastern Region the berries of this plant is edible and is also named ‘Wildedruif’ (Wild grape). No English name is mentioned in the book.

I’m sure you will agree that it looks very tempting, and for sure I am going to try one soon! According to Pooley the roots are poisonous so I will rather stay away from that…

Ledebouria and Drimiopsis

Family: Hyacinthaceae

Species:

Drimiopsis atropurpurea 

Drimiopsis maculata (Injobo)

Ledebouria luteola (Jessop)

Ledebouria ovatifolia

Ledebouria revoluta (Jessop)

Ledebouria zebrina

Drimiopsis atropurpurea

Drimiopsis maculata

The Ledebourias gave me more than one headache in the identification process. One must have the inflorescence for exact identification as the leaves look very similar. Unfortunately it doesn’t stop there! Even then you have to investigate the leaves for characteristics of some species. Pictures and information on the internet were very confusing and I had a lot of help for the team at iSpot.Apparently the flowers of L. revoluta and L. asperifolia are very similar and the way to tell would be to feel the under surface towards the base of the leaves and see if there are longitudinal rows of papillae. If so, then it is L. asperifolia, if not then it is L. revoluta.

The zebra and wildebeest on our farm love the Ledebouria zebrina and eat both the inflorescence and the leaves. L. luteola has also been observed being grazed upon. I have seen bulbs of L. revoluta, L. luteola and L. ovatifolia being excavated by porcupines.

L. luteola have copious amounts of fine silk like threads in the leaf if you tear the leaf. However, L. revoluta also has this but just not as much.

Ledebouria luteola

Ledebouria ovatifolia can easily be distinguished by the leaves that are flat against the soil.

Ledebouria ovatifolia

I have very successfully grown L. revoluta from seeds. I just pressed the seeds in damp soil and it germinated very soon after that. It already flowered the next season.

At first I thought L. zebrina was L. floribunda. I got the following information from iSpot to correctly identify my specimen:

L. zebrina; Diagnostic Features; Leaves large (300-500 X 90-120mm); inflorescences many (4-10), scape base winged to angled, (Venter 2008)

Resembles large plants of L. floribunda but the leaves are far larger, more than double the number of inflorescences and the flowers are green. (Venter 2008)

L. floribunda leaves 4-6 (200-300 X 40-50mm) inflorescences 1-3, perianth green to pink with a green keel (Venter 2003)

Ledebouria zebrina