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Hibiscus clayi

Hibiscus clayiHibiscus clayi
 Hibiscus clayi, a member of the mallow family (Malvaceae),
is a shrub or tree 13 to 26 ft (4 to 8 m) tall with stems bearing sparse hairs at the branch
tips. The oval or elliptical leaves are usually 1 to 3 in (3 to 7 cm) long and 0.6 to 1.4 in (15
to 35 mm) wide and have a hairless upper surface and slightly hairy lower surface. The
leaf margins are entire or toothed toward the apex. The flowers are borne singly near the
ends of the branches. The flaring petals are dark red, 1.8 to 2.4 in (45 to 60 mm) long, and
0.4 to 0.7 in (10 to 18 mm) wide. The green tubular or urn‐shaped calyx is usually 0.6 to 1
in (15 to 25 mm) long with five or six shorter bracts beneath. The fruits are pale brown
capsules, 0.5 to 0.6 in (12 to 14 mm) long, containing about 10 oval, brownish‐black seeds
about 0.16 in (4 mm) long. This species is distinguished from other native Hawaiian
members of the genus by the lengths of the calyx, calyx lobes, and capsule, and by the
margins of the leaves.
This lowland dry forest species
generally grows on slopes at an elevation of 750 to 1,150 ft (230 to 350 m).
USDA Zone 11: above 4.5 C (40 F)