| Literature for Hibiscus brackenridgei
Wilson, 1993. Literature for Hibiscus brackenridgei subsp. brackenridgei
Wilson, 1993. Literature for Hibiscus brackenridgei subsp. mokuleianus
Wilson, 1993. Literature for Hibiscus brackenridgei subsp. molokaiana
|Malvaceae -- The Cacao, Linden, Mallow Family||Bibliography|
||Shrubs to 3 m or trees to 10 m; stems
glabrous or finely stellate-pubescent below, stellate-pubescent above, sometimes with prominent aculei.
||Stipules filiform, 3-15 mm long, sparsely to densely fine stellate-pubescent. Leaves heteroblastic, the leaf
nectary 1-2 mm long, on midrib at base of abaxial leaf surface, or sometimes absent, the blades of all leaves adaxially glabrate or finely stellate-pubescent, abaxially finely
stellate-pubescent, the margin of all blades serrate to dentate; leaves near base of the plant not seen; leaves at mid-plant: petioles 3-8.5 cm long, sparsely to densely fine stellate-
pubescent, or sometimes with a few
coarse stellate hairs, the blades ovate or 3-5-lobed, 5-14 cm long x 4.5-12 cm wide, the base truncate to cordate, the apex acute to obtuse; leaves at upper plant: petioles 0.8-9 cm long, pubescent like those at mid-plant, the blades either bract-like and oblanceolate,
to 20 x 5 mm long, with cuneate
base, serrate margin, and acute apex or shallowly lanceolate to ovate to 3-5-lobed, 15-60 mm long x 8-80 mm wide, the base cuneate to truncate or cordate, the apex acute to obtuse.
||Flowers solitary, axillary, or
sometimes clustered near the apex; peduncles 2-5 mm in bud, elongating to 13-15 mm in fruit, articulating at the base, sparsely to densely fine to coarse stellate-pubescent, sometimes with straight, simple, shiny, pustular-based hairs to 2 mm; involucellar bracteoles 7-11 in number, linear to narrowly subulate, rounded or flattened, 9-25 mm long, pubescent like peduncles, the apex entire; calyx 15 mm in bud, elongating to 35(40) mm in fruit, the lobes acute to long-acuminate at the apex, sparsely to densely fine stellate-pubescent, or sometimes with appressed or matted, shiny, simple (or sometimes 2-forked) pustuliferous hairs, the midrib and marginal ribs green-brown (or brown in mature fruits) or conspicuously red-purple, the nectary on midrib present or absent; corolla yellow, each petal with a small to large red, brownish, or purple basal
spot, the petals obovate, 3.5-4.5 cm long x 2-4 cm wide, ventrally glabrous, dorsally sparsely fine stellate-pubescent, or sometimes
with a few straight hairs; staminal column 20-40 mm long, red, red-brown, or
red-purple below, cream or tan-yellow
above, the filaments 0.5-3 mm, the anthers yellow-tan or red-purple, the pollen cream, tan, brown, orange, or red; style branches exserted to 5 mm beyond the stamina1 column.
||Capsules 12-20 mm long x 12-17 mm in diam., glabrous (?) or sparsely to densely appressed-pubescent, the beak 1-3 mm long, glabrous.
||Seeds 3-5 mm long x 2-3 mm wide, angular-reniform, light brown to brown with honeycombed markings and pectinate scales, the funiculus small, inconspicuous, light- to dark-brown, sometimes with a fringe of hairs.