Evolvulus nuttallianus

Schultes in J. J. Roemer et al.

Syst. Veg. 6: 198. 1820.

Common names: Shaggy dwarf morning glory
Illustrated
Basionym: Evolvulus argenteus Pursh Fl. Amer. Sept. 1: 187. 1813
Treatment appears in FNA Volume 14.

Subshrubs; herbage hairy, hairs spreading. Stems ascending to erect, 10–15+ cm, internodes rarely 4+ mm. Leaves penta­stichous, distals ± antrorse; blade usually elliptic, sometimes linear-oblong or narrowly lanceolate to oblanceolate, rarely oblong, 8–20 × 1.5–5 mm, surfaces densely hairy. Inflorescences: flowers solitary; peduncles plus pedicels stout, 1–2(–4) mm. Flowers: sepals lanceolate to narrowly lanceolate, 4–5 mm; corolla blue, purple, or lavender, rotate to broadly campanulate, limb 8–12 mm diam., margins subentire.


Phenology: Flowering Apr–Oct.
Habitat: Oak woodlands, ponderosa pine zones, sandy, rocky prairies, plains, juniper-pinyon wood­lands, chaparral.
Elevation: 200–2500 m.

Distribution

Ariz., Ark., Colo., Ill., Kans., Mo., Mont., Nebr., N.Mex., Okla., S.Dak., Tenn., Tex., Utah, Wyo., Mexico.

Discussion

R. H. Mohlenbrock (1986) reported Evolvulus nuttallianus as established in Kane County, Illinois. Reports of it being established in North Dakota have not been confirmed.

The name Evolvulus pilosus of Nuttall (not validly published) pertains here.

Selected References

None.

Lower Taxa

None.
... more about "Evolvulus nuttallianus"
Daniel F. Austin† +
Schultes in J. J. Roemer et al. +
Evolvulus argenteus +
Shaggy dwarf morning glory +
Ariz. +, Ark. +, Colo. +, Ill. +, Kans. +, Mo. +, Mont. +, Nebr. +, N.Mex. +, Okla. +, S.Dak. +, Tenn. +, Tex. +, Utah +, Wyo. +  and Mexico. +
200–2500 m. +
Oak woodlands, ponderosa pine zones, sandy, rocky prairies, plains, juniper-pinyon woodlands, chaparral. +
Flowering Apr–Oct. +
Illustrated +
Evolvulus nuttallianus +
Evolvulus +
species +