Hovenia Thunb.

Hovenia (en)

Genus

Angiosperms > Rosales > Rhamnaceae

Characteristics

Deciduous trees or rarely shrubs, to 25 m tall. Young branches often pilose or tomentose. Leaves alternate, long petiolate, 3-veined from base, primary vein with 4-8 pairs of secondary veins, leaf base ± oblique, margin serrate. Flowers white or yellow-green, bisexual, 5-merous, in terminal or axillary, cymose panicles. Calyx tube hemispherical; lobes triangular, adaxially ± distinctly keeled. Petals elliptic to ovate, shortly clawed at base, rarely slightly emarginate apically, often ± completely enfolding stamens, ± widely reflexed during anthesis. Stamens enfolded by petals; filaments lanceolate-linear; anthers dorsifixed. Disk subrounded, thick, fleshy, often ± densely pubescent, rarely glabrous, filling calyx tube. Ovary semi-inferior, nearly completely immersed in disk, 3-loculed, with 1 ovule per locule; style 2-or 3-fid, ± deeply branched. Drupe subglobose, glabrous to densely hairy, base with persistent calyx tube, apex with rudimentary style; mesocarp leathery, often separating from membranous endocarp; peduncles and pedicels of infructescence becoming distinctly fleshy and juicy at fruit maturity. Seeds 3, brownish to blackish, shiny, oblate to orbicular, often spotted with minute pits.
More
Trees [shrubs], unarmed; bud scales present. Leaves deciduous, alternate; blade not gland-dotted; pinnately veined, basal pair of secondary veins more prominent. Inflorescences terminal or axillary, compound dichasia (appearing repeatedly dichotomously branched); peduncles and pedicels becoming fleshy [not fleshy] in fruit. Pedicels present. Flowers bisexual; hypanthium hemispheric, 2–3 mm wide; sepals 5, spreading, white, ovate-triangular to triangular, keeled adaxially; petals 5, white or yellow-green, inrolled full length, elliptic to ovate, short-clawed; nectary fleshy, filling hypanthium; stamens 5; ovary 1/2-inferior, 3-locular; styles 2–3, connate basally. Fruits capsules, appearing drupaceous, tardily dehiscent, exocarp sloughing off from leathery mesocarp prior to dehiscence.
Deciduous or (in Australia) evergreen trees. Leaves alternate, concolorous, ± tripliveined, long-petiolate; stipules free, early caducous. Inflorescences axillary and terminal, comprising 3-to several-flowered contracted cymes in small cymose panicles. Flowers bisexual, 5-merous. Hypanthium cup-shaped. Sepals spreading to reflexed, caducous. Petals longitudinally rolled or irregularly cucullate, clawed, spreading to reflexed. Stamens, subequal to the petals, finally reflexed. Disc filling the hypanthium, smooth, bearing long, sparse, rusty hairs. Ovary inferior; carpels 3. Fruits globoid, capsular, with basal torus, splitting irregularly to release the seeds, borne on a thickened, fleshy, branching infructescence axis.
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Sexuality hermaphrodite
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Mature height (meter) 25.0
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Hardiness (USDA) 6-11

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Cultivation

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Images

Hovenia unspecified picture

Distribution

Hovenia world distribution map, present in Australia, China, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:33460-1
WFO ID wfo-4000018346
COL ID 4YZ7
BDTFX ID -
INPN ID 446685
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Hovenia

Lower taxons

Hovenia acerba Hovenia trichocarpa Hovenia tomentella Hovenia dulcis