Common names:
Perfoliate pennycress, Cotswold pennycress
Family:
Scientific name:
Thlaspi perfoliatum
Main flower color:
Range:
The Cotswolds, Oxfordshire and Gloucestershire
Height:
Up to 25 cm
Habitat:
Old walls, disused quarries and other rocky areas; on limestone
Flowers:
Hairless, in terminal clusters; reddish-green sepals, white along the margins, and all-white petals about twice as long (up to 3 mm). Stamens are shorter than the petals
Fruit:
Flattened, inverse heart-shaped, two-celled pods, with notch at the tip containing the residual style (not exserted)
Leaves:
Oblong to obovate, greyish-green with a waxy texture; in a basal rosette and a few along the stem (deeply clasping, appearing perfoliate). Coarsely toothed
Season:
April to May
Rarity:
★★★★★
