familyConvolvulaceae
genusCalystegia
speciesCalystegia macrostegia
subspeciesCalystegia macrostegia subsp. arida
Difference between revisions of "Calystegia macrostegia subsp. arida"
Ann. Missouri Bot. Gard. 52: 215. 1965.
Basionym: Convolvulus aridus Greene Pittonia 3: 330. 1898
Treatment appears in FNA Volume 14.
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|species=Calystegia macrostegia | |species=Calystegia macrostegia | ||
Latest revision as of 14:15, 24 November 2024
Herbage ± pubescent, grayish. Stems trailing or twining-climbing. Leaf blades narrowly triangular, basal lobes 2-pointed or rounded, basal sinus rounded to quadrate. Bracts lanceolate, 10–16(–21) × 6–10 mm, proximally flat or ± keeled, apex acute. Flowers: sepals 9–12 mm; corolla white or cream, 24–34 mm; stamens 15–18 mm.
Phenology: Flowering Apr–Jul.
Habitat: Chaparral, coastal scrub, dry sites.
Elevation: 0–1200 m.
Distribution
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Calif., Mexico (Baja California).
Discussion
Subspecies arida intergrades with Calystegia macrostegia subspp. intermedia and tenuifolia and with C. occidentalis subsp. fulcrata.
Selected References
None.
Lower Taxa
None.