Geum macrophyllum var. macrophyllum

Treatment appears in FNA Volume 9. Treatment on page 66. Mentioned on page 60, 65, 67.

Cauline leaves: proximal strongly lyrate-pinnate, distal simple and 3-lobed (divided less than 3/4 to base), lobes rhombic-oblong. Pedicels densely puberulent with scattered longer hairs, eglandular. 2n = 42.


Phenology: Flowering late spring–summer.
Habitat: Wet meadows, stream banks, thickets, moist woods, clearings, coastal terraces, forest edges, roadsides
Elevation: 0–1500 m

Distribution

V9 96-distribution-map.jpg

St. Pierre and Miquelon, B.C., N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Alaska, Calif., Idaho, Maine, Mass., Mich., Mont., Nebr., N.H., N.Y., N.Dak., Oreg., Vt., Wash., Wis., Eurasia.

Discussion

Alaskan specimens of var. macrophyllum often have relatively few stalked glands on the styles and some appear almost glandless.

Variety macrophyllum hybridizes with Geum rivale (= G. ×pulchrum Fernald); see discussion under 8. G. rivale.

Selected References

None.

Lower Taxa

None.
Joseph R. Rohrer +
Willdenow +
St. Pierre and Miquelon +, B.C. +, N.B. +, Nfld. and Labr. +, N.S. +, Ont. +, P.E.I. +, Que. +, Alaska +, Calif. +, Idaho +, Maine +, Mass. +, Mich. +, Mont. +, Nebr. +, N.H. +, N.Y. +, N.Dak. +, Oreg. +, Vt. +, Wash. +, Wis. +  and Eurasia. +
0–1500 m +
Wet meadows, stream banks, thickets, moist woods, clearings, coastal terraces, forest edges, roadsides +
Flowering late spring–summer. +
Acomastylis +, Erythrocoma +, Novosieversia +  and Stylypus +
Geum macrophyllum var. macrophyllum +
Geum macrophyllum +
variety +