Flora of North America species comparison

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Thysanocarpus radians

large fringe-pod, rib fringe-pod, showy fringe pod
Stems

1.5–6 dm.
Basal leaves

blade oblanceolate, 1.5–4 cm, margins sinuate-dentate to runcinate-pinnatifid, surfaces usually glabrous, rarely sparsely hirsute, trichomes whitish, 0.3–0.4 mm.
Cauline leaves

blade lance-ovate to lanceolate, widest at base, base auriculate-clasping, auricles extending around stem (at least some leaves).
Racemes

internodes 9–18 mm in fruit.
Fruiting pedicels

weakly ascending, straight or nearly so, geniculately-reflexed apically, (proximal) 7–18 mm.
Fruits

flat, orbicular, (7–10 mm wide);

valves pubescent or glabrous, trichomes pointed, ± 0.2 mm;

wing entire or with undulate margins, rays distinct, ± 0.1 mm wide.

Thysanocarpus radians
Phenology Flowering Mar–Apr.
Habitat Meadows in oak woodlands, fields, swales
Elevation 20-400 m (100-1300 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

The large (7–10 mm wide), strongly rayed fruits and geniculately reflexed apices of fruiting pedicels make Thysanocarpus radians a very distinctive species. Occasional plants in northern California appear to be hybrids between T. curvipes and T. radians.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 7, p. 741.
Parent taxa Brassicaceae > tribe Thelypodieae > Thysanocarpus
Sibling taxa
T. conchuliferus, T. curvipes, T. laciniatus
Synonyms T. radians var. montanus
Name authority Bentham: Pl. Hartw., 297. (1849)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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