Flora of North America species comparison

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Evolvulus alsinoides

Evolvulus arenarius

ojo de víbora, slender dwarf morning-glory

sand plain dwarf morning-glory
Habit Perennials; herbage loosely hairy to glabrate, hairs erect to spreading. Perennials, rhizomatous; herbage hairy, hairs mostly appressed, 2-armed.
Stems

usually ascending, rarely procumbent, 6–50 cm.

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

blade elliptic, lanceolate, oblong, or ovate, 8–22 × 3.5–11 mm.

pentastichous, distals ± antrorse;

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

2-flowered or flowers solitary;

peduncles plus pedicels filiform, (12–)25–50+ mm.

flowers solitary;

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

sepals lanceolate, 2–2.5 mm, abaxially glabrous or pilose;

corolla pale blue or white, rotate, limb (5–)7–10 mm diam. 2n = 26 (Asia).

outer sepals ovate, 3–4 mm;

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

Evolvulus alsinoides

Evolvulus arenarius
Phenology Flowering Feb–Dec. Flowering May–Sep.
Habitat Pine-oak woodlands, saguaro desert scrub, desert grasslands, disturbed sites, xeric and rocky sites. Sandy places, grasslands, prairies, scrublands.
Elevation 0–1900 m. (0–6200 ft.) 800–1400 m. (2600–4600 ft.)
Distribution
from FNA
AL; AZ; FL; NM; TX; Mexico; Central America; South America
[WildflowerSearch map]
[BONAP county map]
from FNA
NM; TX
[BONAP county map]
Discussion

Presence of Evolvulus alsinoides was reported for Alabama by C. T. Mohr (1901). Its presence in Missouri has not been confirmed.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 14. FNA vol. 14.
Parent taxa Convolvulaceae > Evolvulus Convolvulaceae > Evolvulus
Sibling taxa
E. arenarius, E. arizonicus, E. convolvuloides, E. grisebachii, E. nuttallianus, E. sericeus
E. alsinoides, E. arizonicus, E. convolvuloides, E. grisebachii, E. nuttallianus, E. sericeus
Synonyms Convolvulus alsinoides, E. alsinoides var. angustifolius, E. alsinoides var. grisebachianus, E. alsinoides var. hirticaulis
Name authority (Linnaeus) Linnaeus: Sp. Pl. ed. 2, 1: 392. (1762) R. T. Harms: Phytoneuron 2014-20: 1, fig. 1. (2014)
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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