Ranunculus micranthus

Nuttall

in J. Torrey and A. Gray, Fl. N. Amer. 1: 18. 1838.

Endemic
Synonyms: Ranunculus micranthus var. cymbalistes (Greene) Fernald Ranunculus micranthus var. delitescens (Greene) Fernald
Treatment appears in FNA Volume 3.

Stems erect, 11-40 cm, villous, each with 8-35 flowers. Roots dimorphic, some filiform, 0.2-0.6 mm thick and some with tuberous bases 1-2 mm thick. Basal leaves persistent, blades ovate, orbiculate, or transversely elliptic, outer blades undivided, inner 3-parted or 3-foliolate, 1-3.3 × 1-3 cm, base truncate to broadly obtuse or sometimes weakly cordate, margins crenate, apex rounded-obtuse. Flowers: pedicels glabrous or villous; receptacle glabrous; sepals 2-4 × 1-1.5 mm, abaxially glabrous or pubescent, hairs colorless; petals 5, 1.5-3.5 × 0.5-1.5 mm; nectary scale glabrous. Heads of achenes globose to cylindric, 3-7 × 2-4 mm; achenes 1.1-1.5 × 1-1.3 mm, glabrous; beak subulate, straight or curved, 0.2-0.3 mm. 2n = 16.


Phenology: Flowering spring (Mar–May).
Habitat: Woods, meadows, and clearings
Elevation: 0-1000 m

Distribution

V3 147-distribution-map.gif

Ala., Ark., Conn., D.C., Ill., Ind., Kans., Ky., Md., Mass., Miss., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., S.Dak., Tenn., Va., W.Va.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Ranunculus micranthus"
Alan T. Whittemore +
Nuttall +
Ranunculus sect. Marsypadenium +
Ala. +, Ark. +, Conn. +, D.C. +, Ill. +, Ind. +, Kans. +, Ky. +, Md. +, Mass. +, Miss. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, S.Dak. +, Tenn. +, Va. +  and W.Va. +
0-1000 m +
Woods, meadows, and clearings +
Flowering spring (Mar–May). +
in J. Torrey and A. Gray, Fl. N. Amer. +
W2 +  and Endemic +
Ranunculus micranthus var. cymbalistes +  and Ranunculus micranthus var. delitescens +
Ranunculus micranthus +
Ranunculus sect. Epirotes +
species +