Flora of North America species comparison

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Thelypodiopsis purpusii

Purpus' tumble-mustard
Habit Annuals; (often glaucous), glabrous throughout.
Stems

unbranched or branched distally, 1.5–5(–7) dm.
Basal leaves

(soon withered);

not rosulate;

petiole 0.5–3 cm;

blade oblanceolate, 1.5–9 cm × 5–30 mm, margins pinnatifid to dentate-sinuate.
Cauline leaves

(proximalmost) petiolate or (distal) sessile;

blade (proximalmost) oblanceolate, (distal) ovate to oblong, base subamplexicaul or auriculate, margins (proximalmost) pinnatifid to dentate-sinuate, or (distal) entire.
Racemes

lax.
Flowers

sepals erect, green or purplish, 3–4.5 × 0.7–1.2 mm;

petals white, oblanceolate, 4–5.5 × 1–1.5 mm, claw 2–3 mm;

median filament pairs 3–4 mm;

anthers ovate, 0.5–0.8 mm;

gynophore 0.2–0.4 mm.
Fruiting pedicels

ascending to divaricate, straight, 3–7(–10) mm.
Fruits

divaricate to ascending or spreading, straight or curved, torulose, 3–6.5 cm × 1–1.2 mm;

ovules 46–114 per ovary;

style subclavate, 0.7–1.5 mm;

stigma entire or obscurely 2-lobed.
Seeds

0.9–1.2 × 0.5–0.7 mm.

Thelypodiopsis purpusii
Phenology Flowering Feb–May.
Habitat Juniper woodlands, rocky slopes, shale grounds, loose gypsum, barren areas, clay banks of rocky hillsides, shrub communities
Elevation 1400-2100 m (4600-6900 ft)
Distribution
from FNA
AZ; NM; TX; Mexico (Coahuila)
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 7, p. 726.
Parent taxa Brassicaceae > tribe Thelypodieae > Thelypodiopsis
Sibling taxa
T. ambigua, T. aurea, T. divaricata, T. elegans, T. juniperorum, T. shinnersii, T. vaseyi, T. vermicularis
Synonyms Thelypodium purpusii, Sisymbrium kearneyi, Sisymbrium purpusii, Sisymbrium vernale, Thelypodium vernale
Name authority (Brandegee) Rollins: Contr. Gray Herb. 206: 14. (1976)
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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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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