2024 Edition • Get the App
X

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 Malvastrum

Copy permalink to share

1 Leaves linear-lanceolate to lanceolate, 3.5-8× as long as wide; plant 1-5 (-8) dm tall; [calcareous habitat, inland provinces]
1 Leaves broadly lanceolate to broadly ovate, 1.5-2.5× as long as wide; plant (5-) 10-20 dm tall; [various habitats, Coastal Plain, mainly FL, TX, and LA, or as waifs].
..2 Hairs of the stems stellate with 5-12 rays; leaves sometimes shallowly 3-lobed
....3 Hairs of the stems with ascending rays, these not notably fused basally
....3 Hairs of the stems with rays appressed to the surface, the rays fused basally and thus sublepidote
..2 Hairs of the stems stellate with 2-5 rays; leaves unlobed.
......4 Mericarps with minute cusps, none longer than 0.1-0.4 mm long
......4 Mericarps with well-developed sharp cusps, the larger 1-2 mm long
Cite as...