Flora of North America species comparison

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Enemion stipitatum

Enemion savilei

dwarf false rue anemone, Siskiyou false rue anemone, Siskiyou rue-anemone, western isopyrum

queen Charlotte false rue-anemone, queen Charlotte Island false rue anemone, queen Charlotte isopyrum, queen Charlotte rue-anemone
Stem(s)

3-12 cm, cespitose, not rhizomatous;

roots tuberous.

10-35 cm, strongly rhizomatous;

roots fibrous.
Leaves

abaxially glabrous;

leaflets entire or deeply 2-3-lobed, apex rounded, glandular-apiculate.

abaxially glabrous;

leaflets irregularly 2-3-lobed, lobes often with 1-3 secondary lobes;

apex rounded, with shallow glandular notches.
Inflorescences

axillary, flowers solitary;

peduncle strongly clavate.

axillary, flowers solitary or occasionally in loose 2-flowered leafy cymes;

peduncle not strongly clavate.
Flowers

sepals 3.5-6 × 1.4-2.5 mm;

stamens 8-15;

filaments flat, narrowly triangular, 1.9-3.2 mm.

sepals (10-)12.6-15(-16.8) × (6.9-)8.2-10.2(-11.2) mm;

stamens 40-60;

filaments filiform to club-shaped, 5-8 mm.
Seeds

0.9-1.4(-1.7) mm, glabrous.

2-2.5 mm, glabrous.
Follicles

stipitate, upright and appressed;

body oblong, 4-8(-9) mm, abruptly contracted into style beak;

beak 0.5-1.5 mm.

sessile, upright to widely divergent;

body oblong, 11-15 mm, abruptly contracted into style beak;

beak 0.8-1.7 mm.
2n

= 14.

Enemion stipitatum

Enemion savilei
Phenology Flowering late winter–early spring. Flowering spring.
Habitat Shaded shrubby areas, oak woodlands, and moist deciduous or mixed evergreen forests, occasionally in open pastures Moist, shady, rocky crevices and talus slopes
Elevation 200-1500 m (700-4900 ft) 100-1000 m (300-3300 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
BC
[BONAP county map]
Discussion

This distinctive species was discovered in 1957 on the Queen Charlotte Islands and was thought to be endemic to those islands. Subsequently it has been found on the Brooks Peninsula on the west coast of Vancouver Island and on Porcher Island, south of Prince Rupert (T. C. Brayshaw 1989).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 3. FNA vol. 3.
Parent taxa Ranunculaceae > Enemion Ranunculaceae > Enemion
Sibling taxa
E. biternatum, E. hallii, E. occidentale, E. savilei
E. biternatum, E. hallii, E. occidentale, E. stipitatum
Synonyms Isopyrum stipitatum Isopyrum savilei
Name authority (A. Gray) J. R. Drummond & Hutchinson: Bull. Misc. Inform. Kew 1920: 160. (1920) (Calder & R. L. Taylor) Keener: Castanea 45: 278. (1980)
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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