Flora of North America species comparison

bark ± smooth to furrowed;

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

bark smooth, sometimes peeling or shredding with age;

twigs unicellular-hairy, papillate, with flattened, glandular scales (lepidote).

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.

persistent, (fragrant when crushed);

petiole with glandular-peltate scales without broad rim and few, ferruginous, long-crisped hairs;

blade (white or pale green abaxially), ovate to lanceolate, (1–)2–8 × 1.5–3 cm, coriaceous, margins entire, plane, glabrous, apex usually acute, abaxial surface sparsely to densely papillate, with few, ferruginous, long-crisped hairs and glandular-peltate scales without broad rim, adaxial surface with scattered lepidote scales and/or papillae, sometimes also unicellular-hairy along midrib.

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

bracts similar to bud scales.

slightly rounded, 10–35-flowered;

bracts lepidote abaxially, margins ciliate, unicellular-hairy.

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

4–25 mm, with dense to sparse, ferruginous, long-crisped, unicellular and/or peltate scales, sometimes also long-stalked, multicellular 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.

radially symmetric, opening after leaves (of flowering shoots), ± erect, fragrance not noticeable at mid day;

calyx lobes (often reflexed in fruit), ± 1–1.5 mm, outer surface densely to sparsely unicellular-hairy (hairs tan) and multicellular stipitate-glandular-hairy (hairs red) on margins;

corolla white to cream, without blotch, ± rotate, 2–8 mm, inner surface hairy proximally, outer surface glabrous, petals appearing distinct or only slightly connate basally, lobes (4–)5–7 mm;

stamens (8–)10(–12), exserted, ± equal, 4.5–8.4 mm.

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

borne on recurved pedicels, 2.5–5 × 2–6 mm (only slightly longer than wide), glabrous, acropetally dehiscent.

with distinct tails;

testa closely appressed.

somewhat elongated beyond narrow ends;

testa closely appressed.

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

bud scales with peltate scales without broad rim and unicellular-hairy abaxially, margins unicellular-hairy.

= 26.

= 26.