Cressa truxillensis |
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alkali weed, spreading alkali weed |
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Stems | to 40 cm, hirsute to sericeous; usually leafy at anthesis. |
Leaves | petioles 0.5–2 mm; blade elliptic, lanceolate, or ovate-lanceolate, 3–10 × 1–4 mm, surfaces hirsute to ± sericeous. |
Inflorescences | bracteoles ovate to ovate-lanceolate, 2–3 × 1 mm. |
Flowers | sepals: outer elliptic or obovate, 3–4 × 2.5–3 mm, inner obovate, 3–4.5 × 2–3 mm; corolla 5–6.5 mm, tube 3–3.5 mm. |
Capsules | 5–6 mm. |
Seeds | 3–4 mm. |
2n | = 28. |
Cressa truxillensis |
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Phenology | Flowering Apr–Nov. |
Habitat | Moist saline and/or alkaline sites. |
Elevation | -50–1600 m. (-200–5200 ft.) |
Distribution |
AZ; CA; NM; NV; OK; OR; TX; UT; Mexico (Baja California, Chihuahua, San Luis Potosí, Sinaloa, Sonora); South America (Argentina, Chile, Ecuador, Peru) [Introduced in Asia (Timor), Pacific Islands (Hawaii)]
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Source | FNA vol. 14. |
Parent taxa | Convolvulaceae > Cressa |
Sibling taxa | |
Synonyms | C. depressa, C. truxillensis var. minima, C. truxillensis var. vallicola |
Name authority | Kunth in A. von Humboldt et al.: Nov. Gen. Sp. 3(fol.): 93; 3(qto): 119. (1819) |
Web links |