Cardamine depressa

Cardamine depressa (common name - bitter cress)[4] is a plant in the Brassicaceae family, found in the Antipodean Islands.[3]

Cardamine depressa
Plate III (Hooker, 1844)[1]

Naturally Uncommon (NZ TCS)[2]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Cardamine
Species:
C. depressa
Binomial name
Cardamine depressa

Description

Cardamine depressa is a perennial herb, with erect hairless stems growing up to 20 cm high. The leaves may be hairless or hary and are brownish or green, leathery or thin. The basal leaves are simple and may be crenate or entire. The petals are white and 2–3 by 0.6–1 mm. There are six stamens. The brown seeds are circular to oblong, and 0.8–1 mm in length.[5]

It can be found flowering from October to March, and fruiting from November to March.[5]

Habitat

According to Hooker, it is found "in gravelly moist places near the sea amongst grass".[1]

Conservation status

In both 2009 and 2012 it was deemed to be "Not Threatened" under the New Zealand Threat Classification System,[4] and this New Zealand classification was changed to "At Risk - Naturally Uncommon" in 2018, for both subspecies: Cardamine depressa subsp. depressa and Cardamine depressa subsp. stellata, together with the additional qualifiers that they are "Data Poor", "Island endemics" with both found only in one location "OL".[2]

References
  1. Hooker, J.D. (1844). "Cardamine depressa". The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839-1843 :under the Command of Captain Sir James Clark Ross. 1: 6. Plate III
  2. de Lange, P.J.; Rolfe, J.R.; Barkla, J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.M.; Ford, K.A.; Breitwieser, I.; Schönberger, .; Hindmarsh-Walls, R. (2018-05-01). "Conservation status of New Zealand indigenous vascular plants, 2017" (PDF). New Zealand Threat Classification Series. 22: 40. OCLC 1041649797.CS1 maint: numeric names: authors list (link)
  3. "Cardamine depressa Hook.f. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2020-02-20.
  4. "Cardamine depressa | New Zealand Plant Conservation Network". nzpcn.org.nz. Retrieved 2020-02-20.
  5. "Flora of New Zealand | Taxon Profile | Cardamine depressa". www.nzflora.info. Retrieved 2020-02-20.


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