Oedera squarrosa

Oedera squarrosa ("Vierkant-perdekaroo") is a prickly shrublet belonging to the daisy family (Compositae or Asteraceae).

Oedera squarrosa
Oedera squarrosa leaf detail.
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Subfamily:
Asteroideae
Tribe:
Gnaphalieae
Genus:
Oedera
Species:
O. squarrosa
Binomial name
Oedera squarrosa
(L.) Anderb. & K.Bremer
Synonyms
  • Relhania squarrosa

It is an abundant and common species in the southwestern cape, South Africa (Namaqualand to Port Elizabeth). It is most commonly found in close proximity to the main mountain ranges, especially in rocky loamy or clayey soils.

Description

Oedera squarrosa is a small, erect shrublet (60cm high). The leaves are small (15mm x 7mm), ovate, glandular and down-curved, with thickened margins, and grow densely packed along the stems. On the younger stems, the leaves are usually in four ranks. Older stems often have a more imbricate arrangement.

Tufts of a couple of yellow flowerheads appear at the tips of the branches in Spring and Summer. They are 10mm wide, with relatively short stalks (2-10mm).

O. squarrosa is closely related to Oedera genistifolia, another widespread species that is found on lower (usually north-facing) slopes of shale, sandstone or limestone. However, O. squarrosa has wider leaves (7 mm) that are more recurved or down-turned.[1]

gollark: I mean, in my country we just have RFID-blocking wallets.
gollark: Contactless cards can apparently be read at a somewhat greater range than you might want using a RTL-SDR or whatever to pick up the radio signals.
gollark: Although the password thing's still broken, because you have to enter the password into *potentially untrusted hardware*.
gollark: Also, delete contactless.
gollark: I haven't heard of passwords being a thing *here*, but it's a somewhat better system.

References
  1. https://keyserver.lucidcentral.org/key-server/data/04040f0a-0603-4405-880c-010703060006/media/Html/Oedera_squarrosa.htm
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.