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Arizona - New Mexico Chapter
Consortium of Midwest Herbaria
Intermountain Region Herbaria Network (IRHN)
Mid-Atlantic Herbaria
North American Network of Small Herbaria
Northern Great Plains Herbaria
Madrean Archipelago Biodiversity Assessment (MABA) - Flora
Red de Herbarios del Noroeste de México (northern Mexico)
SERNEC - Southeastern USA
Carrichtera annua
(L.) DC.
Family:
Brassicaceae
Ward's Weed
FNA
Resources
NA in Flora of North America (vol. 7)
Stems
branched basally and distally, (0.5-)0.7-3.6(-4.5) dm.
Basal leaves:
petiole 1-4.5 cm; blade 3-6 lobes each side, 1.5-4 cm, terminal lobe linear to oblong, 0.3-1.5 cm × 0.5-1.5 mm, margins entire.
Cauline leaves
similar to basal.
Fruiting pedicels
2.5-4 mm.
Flowers:
sepals 4-5 mm; petals 6.5-8 × 1-2 mm; median filaments 3.5-4 mm; anthers 0.5-0.8 mm.
Fruits
reflexed; proximal segment broadly ovoid to subglobose, 3-4 × 2.5-3.5 mm; terminal segment cochleariform or ovate, 3-5 × 3-4 mm (margin incurved).
Seeds
1.1-1.6 mm diam.
2
n
= 16.
Flowering Apr-May. Deserts; ca. 50 m; introduced; Calif.; sw Europe; sw Asia; n Africa; introduced also in Australia.
Carrichtera annua
was found as a naturalized weed in southern California in 2007.
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This project made possible by
National Science Foundation Award EF 1702516
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