Colors

Data mode

Account

Login
Sign up

Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Symphyotrichum, Key H: perennial asters with blue-glaucous stems and leaves

Copy permalink to share | Check for keys that lead to this key

1 Leaves strongly basally disposed, much reduced on the mid and upper stem and the basal and lower stem leaves sometimes withering by anthesis; leaf blades linear or linear-lanceolate (lower) to linear-subulate (upper stem), > 10× as long as wide; leaf margins strongly scabrous; [West Gulf Coastal Plain]
1 Leaves cauline; leaf blades ovate to lanceolate, mostly < 9× as long as wide; leaf margins not strongly scabrous; [widespread].
..2 Larger leaves > 5× as long as wide, rarely > 2.5 cm wide, the bases slightly clasping; [dry glades and barrens]
..2 Larger leaves < 5× as long as wide, often > 2.5 cm wide, the bases strongly clasping; [mesic forests and prairies, widespread northwards]
Cite as...