Flora of North America species comparison

bark ± smooth to furrowed;

twigs multicellular eglandular-hairy (hairs unbranched) and unicellular-hairy.

bark smooth to vertically furrowed, shredding;

twigs conspicuously multicellular eglandular-hairy (hairs unbranched), otherwise sparsely to densely unicellular-hairy.

deciduous;

petiole multicellular eglandular- and stipitate-glandular-hairy and unicellular-hairy;

blade narrowly elliptic or ovate to obovate, 2–9 × 0.8–3 cm, thin, membranous to chartaceous, margins minutely serrate, plane, ciliate when young, eglandular- and stipitate-glandular-hairy, apex acute to ± rounded, surfaces scattered eglandular-hairy, ± glabrescent.

deciduous;

petiole multicellular eglandular-hairy and unicellular-hairy;

blade ovate to obovate, 2.9–8.5 × 1.2–3.5 cm, thin, membranous to chartaceous, margins entire, plane, ciliate, eglandular-hairy, apex acute to obtuse, often mucronate, abaxial surface glabrous or densely unicellular-hairy and/or eglandular-hairy, adaxial surface scattered eglandular-hairy, otherwise sparsely unicellular-hairy, glabrate in age.

lateral (axillary, i.e., above leaf scars, spaced along shoots of previous year), fasciculate, 1–2-flowered;

bracts similar to bud scales.

6–11-flowered;

bracts similar to bud scales.

to 9–15 mm, eglandular- and stipitate-glandular-hairy.

3–12 mm, eglandular-hairy, otherwise moderately unicellular-hairy to glabrate.

± radially symmetric, opening soon after (and borne below) expanded leaves, pendulous, very fragrant (similar to vanilla and jasmine);

calyx lobes 5–17 mm, eglandular- and stipitate-glandular-hairy, margins glandular-hairy;

corolla white, rarely marked with yellow, bowl-shaped, 9–22 mm, minutely unicellular-hairy or glabrous on outer surface, petals connate, lobes 6–15 mm, tube expanding into lobes, 3–9 mm;

stamens 9(–12), included, ± unequal, 5.5–14 mm.

opening before or with development of leaves, erect to horizontal, acrid-scented;

calyx lobes 0.5–5 mm, glabrous or unicellular-hairy and eglandular-hairy, margins eglandular-hairy;

corolla bright red to orange-red or orange, with contrasting, darker-colored, orange or yellow-orange blotch on upper lobe, funnelform, 27–51 mm, scattered, multicellular eglandular-hairy (sometimes very weakly stipitate-glandular-hairy), otherwise sparsely to moderately unicellular-hairy on outer surface, petals connate, lobes 8–22 mm (spreading nearly as broadly as tube is long), tube rather abruptly to gradually expanded into lobes, 17–34 mm, longer than lobes;

stamens 5, much exserted, ± unequal, 40–73 mm.

borne on erect pedicels, 6–8 × 5–6 mm, stipitate-glandular-, eglandular-, and unicellular-hairy.

borne on erect pedicels, 15–30 × 4.5–8 mm, densely, stiffly eglandular-hairy and unicellular-hairy.

with distinct tails;

testa closely appressed.

without distinct tails, flattened portion of testa well devloped at each end;

testa expanded, dorsiventrally flattened, ± loose.

bud scales stipitate-glandular- and eglandular-hairy abaxially, margins stipitate-glandular-hairy.

bud scales glabrous or densely unicellular-hairy abaxially, margins densely unicellular-ciliate.

= 26.

= 26.