Assertion: alder's leaf | /r/HasAspect | rusty hairs
Facets:
value: on their lower surfaces
type: LOCATION
Source sentences:
text: Familiar North American alders are the red alder (A. rubra, or A. oregona), a tall tree whose leaves have rusty hairs on their lower surfaces; the white, or Sierra, alder (A. rhombifolia), an early-flowering tree with orange-red twigs and buds; the speckled alder (A. rugosa), a small tree with conspicuous whitish, wartlike, porous markings, or lenticels; the aromatic-leaved American green alder (A. crispa or A. mitchelliana); the closely related but taller Sitka alder (A. sinuata); and the mountain, or thinleaf, alder (A. tenuifolia), a shrubby tree with yellow or orange-brown midribs on its leaves and a domelike crown of pendulous branches.