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 sparsely to moderately scattered, multicellular stipitate-glandular-hairy and eglandular-hairy (hairs unbranched), also unicellular-hairy, glabrate in age.

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- and stipitate-glandular-hairy and unicellular-hairy;

blade elliptic to obovate, 2.3–17 × 0.8–5.5 cm, thin, membranous, margins entire or undulate, plane, widely scattered to densely eglandular-hairy, apex acuminate, abaxial surface scattered stipitate-glandular-hairy, adaxial surface scattered stipitate-glandular-hairy and eglandular-hairy, especially near margins.

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

bracts similar to bud scales.

5–15-flowered;

bracts similar to bud scales.

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

5–26 mm, stipitate-glandular-hairy.

± 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 development of leaves, erect to horizontal, fragrant;

calyx lobes 0.3–8.5 mm, glandular-ciliate, often also scattered, stipitate-glandular-hairy;

corolla pale to deep pink, sometimes white, with orange-brown or red spots on upper lobes, widely campanulate and appearing ± 2-lipped due to more extensive connation of 3 upper lobes and 2 flaring, slightly longer lower lobes, 18–37 mm, glabrous on outer surface, petals connate, upper lobe 10–18 mm, lateral lobes 14–24 mm, lower lobes 15–30 mm, tube gradually expanding into lobes, 3–8 mm (to 1/4 as long as lobes);

stamens (5–)7, not or only slightly exserted, ± unequal, 12–38 mm;

filaments glabrous.

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

borne on erect pedicels, 9–17 × 3–6 mm, very sparsely to moderately multicellular stipitate-glandular-hairy.

with distinct tails;

testa closely appressed.

with ± stellate-globular tails;

testa tightly appressed.

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

bud scales glabrous or nearly so abaxially, stipitate-glandular-hairy, often also unicellular-hairy along margins.

= 26.

= 26.