Rapistrum

Rapistrum, the bastardcabbages,[1] is a genus of the family Brassicaceae with a distinctive cross like arrangement of its petals. Species of Rapistrum are annual to perennials (Lifespan from 1 to 2 or more years). The yellow petals are accompanied by sepals that stand vertically at near right angles (erecto-patent). Leaf shape and arrangement varies from rough toothed (dentate) to a configuration of opposingly lobed pairs along the plant stalk, pinnately lobed.

Rapistrum
Rapistrum rugosum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Rapistrum
Crantz
Species

Rapistrum rugosum (L.) All
Rapistrum perenne (L.) All

Fruit

The genus Rapistrum has a characteristic fruit comprising two segments:

a) The distal (upper division) The part of the fruit farthest away from the point of attachment. The distal is endowed with a ribbed spheroid base (globose) that tapers to form a narrowed projection. It holds a single seed.

b) The proximal (lower division) The part of the fruit nearest to the point of attachment. Possesses a more uniform narrower shape compared to the distal above, giving the fruit a waist. It holds a maximum of three seeds, more commonly none or one.

The fruit varies from species to species. The distal of R. rugosum is strongly ribbed and narrows to form a beak whereas R. perenne is comparatively less wrinkled and ends with a style that stubbornly resists detachment, 'a persistent style'.

When ripe the distal breaks away in an across-wise fashion, breaking transversely.

gollark: I figure if you have the super-advanced technology which is necessary to make this somewhat work, you might as well try and have an actual nice modern-ish society based on that.
gollark: That sounds problematic if you run into bugs or something.
gollark: I guess you could maybe do that if you had very advanced technology to do that with in the first place? It would probably be hard if it broke and you had to edit it in some way, though.
gollark: Techno-primitivism: because advanced technology totally doesn't need expensive large infrastructure to make and maintain!
gollark: <@301477111229841410> It's not efficient. You would probably get more energy just burning the extra food or something. Also, the prisoners wouldn't like it.

References
  1. "Rapistrum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 18 October 2015.
  • Stace, C. (1999), Field flora of the British Isles, Cambridge: Cambridge University Press, ISBN 0-521-65315-0.
  • Streeter, D. (1983), The wild flowers of the British Isles, London: Midsummer Books Ltd., ISBN 1-900732-03-3.
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