Calystegia macrostegia subsp. cyclostegia

(House) Brummitt

Ann. Missouri Bot. Gard. 52: 214. 1965.

Basionym: Convolvulus cyclostegius House Muhlenbergia 4: 53. 1908
Treatment appears in FNA Volume 14.
Revision as of 21:38, 6 October 2024 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Herbage glabrous or puberulent. Stems prostrate, trailing, or strongly twining-climbing, to 250 cm. Leaf blades broadly to narrowly triangular, basal lobes usually ± 2-pointed, rarely rounded, basal sinus acute, rounded, or ± quadrate. Bracts broadly ovate to suborbiculate, (6–)9–15(–20) × 7–13(–16) mm, prox­imally flat, keeled, or saccate, apex acuminate, emar­ginate, or obtuse. Flowers: sepals 9–12(–15) mm; corolla (28–)32–44(–52) mm; stamens 18–26 mm.


Phenology: Flowering Apr–Oct.
Habitat: Pine woods, rocky slopes, sand dunes.
Elevation: 0–900(–1500) m.

Distribution

Calif., Mexico (Baja California).

Discussion

Subspecies cyclostegia intergrades with Calystegia macrostegia subsp. intermedia, C. macrostegia subsp. macrostegia, and C. purpurata subsp. purpurata.

Selected References

None.

Lower Taxa

None.
Richard K. Brummitt† +
(House) Brummitt +
Convolvulus cyclostegius +
Calif. +  and Mexico (Baja California). +
0–900(–1500) m. +
Pine woods, rocky slopes, sand dunes. +
Flowering Apr–Oct. +
Ann. Missouri Bot. Gard. +
Calystegia macrostegia subsp. cyclostegia +
Calystegia macrostegia +
subspecies +