Flora of North America species comparison

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Stylisma patens

Stylisma patens var. patens

coastal plain dawnflower
Photo is of parent taxon

coastal plain dawnflower
Stems

procumbent or trailing, glabrous or hairy.

Leaf

blades elliptic or linear to lanceolate, 20–45 × 2–8 mm, surfaces hairy.

blades elliptic, 6–8 mm wide, length 4–6 times width.
Inflorescences

2–5-flowered or flowers solitary;

bracteoles scalelike, 1–3(–5) mm.

Flowers

sepals ovate-lanceolate, 6–9 × 3–5 mm, abaxial surface pilose, villous, glabrate, or glabrous;

corolla white, 14–20 mm;

stamens: filaments villous near base;

style branches connate only at base.

Sepals

abaxial surfaces pilose or villous.

Stylisma patens

Stylisma patens var. patens
Phenology Flowering May–Sep.
Habitat Coastal plain woods, sandy soils.
Elevation 0–100 m. (0–300 ft.)
Distribution
from USDA
se United States
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; FL; GA; MS; NC; SC
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Leaf blades 6–8 mm wide, length 4–6 times width; sepals: abaxial surfaces pilose or villous.
var. patens
1. Leaf blades 2–3(–5) mm wide, length 7–15 times width; sepals: abaxial surfaces glabrous or glabrate.
var. angustifolia
Source FNA vol. 14. FNA vol. 14.
Parent taxa Convolvulaceae > Stylisma Convolvulaceae > Stylisma > Stylisma patens
Sibling taxa
S. abdita, S. aquatica, S. humistrata, S. pickeringii, S. villosa
S. patens var. angustifolia
Subordinate taxa
S. patens var. angustifolia, S. patens var. patens
Synonyms Convolvulus patens, Bonamia patens S. trichosanthes
Name authority (Desrousseaux) Myint: Brittonia 18: 110. (1966) unknown
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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