Diapensia L.

Diapensia (en)

Genus

Angiosperms > Ericales > Diapensiaceae

Characteristics

Subshrubs, forming tussocks, cushions, domes, or mats, caulescent, taprooted. Stems mostly prostrate to decumbent, branched; branches procumbent or decumbent to erect. Leaves cauline, mostly opposite or compactly whorled, densely imbricate or crowded, 3-15 mm; petiole present or absent; blade oblong-lanceolate to narrowly spatulate, obovate, or spatulate-elliptic, slightly falcate, margins entire, apex acute or obtuse, surfaces glabrous, appearing 1-veined, sometimes with 1-2, indistinct, lateral veins. Inflorescences solitary flowers, pedicellate to subsessile, immediately subtended by 2-3 bracts. Pedicels ebracteate, elongating after anthesis. Flowers: sepals distinct or connate proximally; petals connate in proximal 1/2, corolla cupulate to campanulate, 7-10 mm, lobes white to cream or pinkish tinged to rose, margins entire; anthers 2-locular, without basal spurs, longitudinally dehiscent; filaments adnate to corolla tube; staminodes absent or vestigial. x = 6.
More
Shrublets, prostrate, compact, often forming a mat or cushion. Stems slender, many-branched. Leaves subsessile, often crowded, margin entire. Flowers solitary, subsessile or on a short scape. Calyx with 2 or 3 bracts at base. Corolla campanulate, 5-lobed to middle or more basally, caducous. Staminodes minute or absent. Ovary globose, 3-locular. Style erect, filiform; stigma entire, capitate, or slightly 3-lobed. Capsule 3-locular, ellipsoid or globular, surrounded by persistent calyx; scape elongating in fruit.
Cal deeply 5-parted; cor campanulate, the 5 lobes broadly obovate, about equaling the tube; stamens 5, adnate to the cor to the sinuses; filaments broad and flat; pollen-sacs 2, transversely divergent, opening by longitudinal slits; style slender, elongate; stigma truncate; fr subglobose; dwarf, branched and matted, evergreen subshrubs with mostly opposite lvs; fls white, each closely subtended by 3 bracts, solitary on a terminal peduncle. 4, the others Asian.
Life form perennial
Growth form
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
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Root system tap-root
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Environment

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Hardiness (USDA) 4-10

Usage

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Edible -
Therapeutic use -
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Cultivation

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Images

Diapensia unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:30006453-2
WFO ID wfo-4000011321
COL ID 4488
BDTFX ID 122730
INPN ID 761837
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Diapensia Rembertia

Lower taxons

Diapensia lapponica Diapensia obovata Diapensia wardii Diapensia himalaica Diapensia purpurea