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silky evolvulus, silver dwarf morning-glory

sand plain dwarf morning-glory

Habit Perennials or subshrubs; herbage hairy, hairs appressed to ± spreading. Perennials, rhizomatous; herbage hairy, hairs mostly appressed, 2-armed.
Stems

ascending or procumbent, 10–30 cm.

ascending or procumbent, 10–30+ cm, internodes usually 4+ mm.

Leaves

distichous, distals ± spreading;

blade elliptic, lanceolate, oblong, or ovate, 4–25 × 2–10 mm, surfaces: abaxial densely hairy, adaxial sparsely hairy or glabrate.

pentastichous, distals ± antrorse;

blade elliptic to linear, 8–16 × 0.8–1.4 mm, surfaces ± hairy, hairs ± appressed.

Inflorescences

flowers solitary;

peduncles plus pedicels stout, 0–2(–4) mm.

flowers solitary;

peduncles plus pedicels stout, 0–2(–4) mm.

Flowers

sepals oblong to lanceolate, 3–5 mm;

corolla pale blue, violet, or white, rotate to broadly funnelform, limb 7–12 mm diam. 2n = 26 (Argentina).

outer sepals ovate, 3–4 mm;

corolla lavender, fading yellow, rotate, limb 9–14 mm diam.

Evolvulus sericeus

Evolvulus arenarius

Phenology Flowering Apr–Oct. Flowering May–Sep.
Habitat Oak woodlands, desert grass­lands, plains, savannas, pinelands, chaparral. Sandy places, grasslands, prairies, scrublands.
Elevation 0–1900 m. (0–6200 ft.) 800–1400 m. (2600–4600 ft.)
Distribution
from FNA
AR; AZ; FL; GA; LA; NM; TN; TX; Mexico; Central America; South America; West Indies
[WildflowerSearch map]
[BONAP county map]
from FNA
NM; TX
[BONAP county map]
Source FNA vol. 14. FNA vol. 14.
Parent taxa Convolvulaceae > Evolvulus Convolvulaceae > Evolvulus
Sibling taxa
E. alsinoides, E. arenarius, E. arizonicus, E. convolvuloides, E. grisebachii, E. nuttallianus
E. alsinoides, E. arizonicus, E. convolvuloides, E. grisebachii, E. nuttallianus, E. sericeus
Synonyms E. macilentus
Name authority Swartz: Prodr., 55. (1788) R. T. Harms: Phytoneuron 2014-20: 1, fig. 1. (2014)
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