Geum macrophyllum
Geum vernum
bigleaf avens, large-leaved avens
Basal leaves several, the blades lyrate-pinnatifid, up to 3 dm. long;
leaflets 9-23, triangular-ovate to cordate, the terminal one much the largest, up to 15 cm. wide;
cauline leaves 2-5, with leaf-like stipules.
Flowers several in an open, asymmetrical inflorescence;
calyx saucer-shaped, the 5 lobes 4-5 mm. long, reflexed, alternating with 5 simple bracteoles;
petals 5, yellow, 4-6 mm. long;
stamens and pistils numerous.
Achenes compressed, elliptic, 3 mm. long, the style bent and divided at mid-length, the lower segment 4 mm. long, reddish, hooked at the tip, the upper segment 1-1.5 mm. long, yellowish.
Geum macrophyllum
Geum vernum
Widely distributed on both sides of the Cascades crest in Washington; Alaska to Baja California, east to the Great Plains and east across Canada to the Atlantic Coast.
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria, Turner Photog. 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
