Aruncus dioicus var. pubescens

(Rydberg) Fernald
Rhodora 41: 423. 1939.
Endemic
Basionym: Aruncus pubescens Rydberg in N. L. Britton et al., N. Amer. Fl. 22: 256. 1908
Treatment appears in FNA Volume 9. Treatment on page 424. Mentioned on page 423.

Leaf surfaces densely hairy. Styles 0.3–0.8 mm. Follicles slender, 1.6–2.4 mm. Seeds 1.5–2 mm. 2n = 18.


Phenology: Flowering early summer.
Habitat: Rich woods, limestone bluffs
Elevation: 50–700 m

Distribution

V9 715-distribution-map.jpg

Ark., Ill., Ind., Iowa, Ky., Miss., Mo., Ohio, Okla., Tenn.

Discussion

Variety dioicus gradually gives way to var. pubescens, which has more consistently thicker and hairier leaves and occurs west of the Appalachian Mountains; there is variation in indument throughout the eastern range of var. dioicus.

Selected References

None.

Lower Taxa

None.