Calystegia subacaulis
Calystegia atriplicifolia
Hill morning glory, hillside false bindweed
night-blooming morning-glory, nightblooming false bindweed
moderately to sparsely hairy, hairs appressed, retrorse, or spreading.
glabrous.
ascending-decumbent, to 20–30 cm or almost absent.
ascending-decumbent, erect, suberect, or trailing, to 10–50 cm or almost absent.
in basal rosettes or not;
blade rounded-deltate to triangular-hastate, 30–40 mm, base usually cuneate, sometimes lobed, lobes retrorse, 1-pointed or rounded, margins not or weakly undulate, apex acuminate, acute, rounded, or subacute.
blade rounded-deltate or triangular-hastate, 20–40(–60) mm wide, base cuneate or lobed, lobes at right angles to midrib or slightly retrorse, apex acute to obtuse.
immediately subtending sepals, lanceolate, oblong, or broadly ovate, 7–17 × 1.5–9 mm, shorter, or slightly longer, than sepals, proximally usually flat, sometimes keeled, apex usually rounded, sometimes acute.
immediately subtending sepals, elliptic, ovate, or suborbiculate, 8–19 × 3–18 mm, proximally flat or saccate, scarcely to closely enfolding sepals, apex acute, emarginate, obtuse, or rounded.
sepals 10–13 mm;
corolla white or cream, sometimes pink- to purplish-striped or -tinged, 33–62 mm.
sepals 10–15 mm;
corolla white, sometimes pink or purple-striped, 31–73 mm.
Calystegia subacaulis
Calystegia atriplicifolia
Subspecies 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies 2 (2 in flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Herbage moderately to sparsely hairy, hairs retrorse to spreading; stems almost absent or to 2 cm; leaves in basal rosettes, blade apices usually rounded to acuminate, sometimes subacute; bracts (4–)6–9 mm wide. | subsp. subacaulis |
1. Herbage sparsely hairy, hairs appressed; stems ascending-decumbent, to 20–30 cm; leaves not in basal rosettes, blade apices acute; bracts 1.5–4 mm wide. | subsp. episcopalis |
1. Stems usually suberect or trailing, to 35 cm, sometimes almost absent; leaf blades mostly 40–60 mm wide; bracts 14–19 × 9–18 mm, proximally saccate, apex emarginate to rounded; corollas 40–73 mm. | subsp. atriplicifolia |
1. Stems ascending-decumbent to erect, 10–50 cm; leaf blades mostly 20–40 mm wide; bracts 8–12 × 3–9 mm, proximally flat, apex acute to obtuse; corollas 31–44 mm. | subsp. buttensis |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
OR
WA
Flora NW
PNW Herbaria
