Grewia L.

Genus

Angiosperms > Malvales > Malvaceae

Characteristics

Small trees or shrubs, often scandent. Leaves alternate, simple, 3–5-nerved from the base, margins serrate to ± entire, petiolate; stipules entire or divided, caducous or sometimes persistent. Inflorescences axillary, leaf-opposed axillary or terminal cymes, or many-flowered panicles in sect. Microcos. Bracts 3 at base of pedicels, small, ovate to linear, caducous, often falling while still in bud, rarely persistent. Flowers white, yellow or pink to purple, bisexual or possibly rarely unisexual, (4–)5-merous. Sepals linear-lanceolate to oblong or slightly spathulate, stellate-pubescent outside, usually the same colour as the petals inside. Petals shorter than the sepals, oblong to subcircular, with a nectariferous claw at the base. Stamens numerous, attached to the hairy node of the androgynophore. Ovary 2–4-locular, entire or 2–4-lobed, with 2–many axile ovules; style similar in length to the stamens; stigma with subulate or flattened lobes (or unlobed in sect. Microcos ). Fruit a 1–4-lobed drupe with 1–4 pyrenes; mesocarp somewhat fleshy or fibrous; endocarp hard and woody. Fig. 3.
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Trees or shrubs. Branchlets usually stellate. Leaves alternate; stipule minute, caducous; petiole short; leaf blade basal veins 3-5, margin serrate or rarely lobed. Flowers bisexual, polygamous, or unisexual (plants monoecious), usually arranged in 3-to many-flowered cymes, solitary or fascicled, axillary or opposite leaves, rarely terminal. Peduncle and pedicel usually hairy. Bracts caducous. Sepals 5, yellow, white, or lilac, rarely brown, free, valvate, abaxially hairy, adaxially usually glabrous, rarely hairy. Petals 5, mostly yellow or white in Flora area, shorter than sepals; glands usually scalelike, borne on base of petals, margin usually villous. Androgynophore short, usually glabrous. Stamens many, free, irregular in length; anthers globose, dorsifixed, dehiscence longitudinal. Ovary 2-4-loculed; ovules 2-8 per locule; style simple; stigma swollen, peltate, entire or 2-4-lobed. Drupe usually with 2 or 4 drupelets. Endosperm copious; cotyledons flat.
Trees, shrubs or rarely climbers; often stellate-hairy. Leaves alternate, often distichous, trinerved at base, entire or toothed; stipules caducous. Inflorescence cymose, usually axillary, few-flowered, solitary or clustered, or leaf-opposed or terminal; flowers subtended by caducous bracts. Sepals 5, free, pubescent. Petals 5, free, usually shorter than sepals, glandular or hairy towards base. Stamens many, on a short androgynophore. Ovary 2–4-locular; ovules 2–8 per locule. Style usually slender; stigma peltate or lobulate. Fruit fleshy, often much reduced, drupaceous, 1–4-locular, lobed or almost entire, with 1–4 pyrenes, each with 1–several seeds.
Ovary 2–4-locular, entire or 2–4-lobed, with 2 to many axile ovules in each loculus; style longer than the ovary, with subulate or flattened lobes or almost entire.
Stamens indefinite, free, usually raised on a torus or androgynophore which is short and glabrous or produced above into a pubescent extension.
Petals 5, shorter than the sepals, yellow, purplish-blue or white, usually with a nectariferous claw or gland at the base.
Fruit a 1–4-lobed drupe or berry with 1–4 pyrenes; mesocarp somewhat fleshy or fibrous; endocarp hard and woody.
Sepals 5, linear-oblong or linear-spathulate, stellately hairy outside, often coloured within like the petals.
Leaves alternate, simple, serrate or very rarely entire, 3–7-nerved at the base, petiolate; stipules lateral.
Flowers in terminal or axillary panicles or in leaf-opposed or axillary umbel-like cymes.
Shrubs or smallish trees.
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Foliage retention deciduous
Sexuality hermaphrodite
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Hardiness (USDA) 6-11

Usage

The wood is moderately hard and light, valuable for small items where toughness is required, such as handles, poles and shafts; it may also be useful for pulping. The fibrous bark can be used to make rough ropes. The fruit of many species are juicy and edible, although acidic.
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Cultivation

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Images

Grewia unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:30123138-2
WFO ID wfo-4000016210
COL ID 4R3G
BDTFX ID 191078
INPN ID 446049
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Graevia Grewia

Lower taxons

Grewia kothayarensis Grewia ambongensis Grewia amplifolia Grewia analamerensis Grewia andramparo Grewia angolensis Grewia angustisepala Grewia annamica Grewia apetala Grewia argentea Grewia avellana Grewia biloba Grewia boehmiana Grewia brassii Grewia caffra Grewia carpinifolia Grewia cyclea Grewia erythroxyloides Grewia faucherei Grewia ferruginea Grewia filipes Grewia flava Grewia flavescens Grewia forbesii Grewia gamblei Grewia geayi Grewia gillettii Grewia gracillima Grewia grandidieri Grewia grandiflora Grewia graniticola Grewia grevei Grewia helicterifolia Grewia henryi Grewia hexamita Grewia hierniana Grewia hirsuta Grewia humblotii Grewia humilis Grewia hypotephra Grewia inaequilatera Grewia indandamanica Grewia insularis Grewia isochroa Grewia katangensis Grewia lasiocarpa Grewia lasioclada Grewia lasiodiscus Grewia lilacina Grewia limae Grewia microcyclea Grewia mildbraedii Grewia minutiflora Grewia mollis Grewia monantha Grewia morotaiensis Grewia multiflora Grewia nematopus Grewia oncopetala Grewia oppositifolia Grewia optiva Grewia orbifolia Grewia orientalis Grewia pandaica Grewia pannosisepala Grewia papuana Grewia penicillata Grewia penninervis Grewia permagna Grewia perrieri Grewia pervillei Grewia picta Grewia piscatorum Grewia plagiophylla Grewia polygama Grewia puttkameri Grewia retinervis Grewia retusifolia Grewia robusta Grewia rogersii Grewia saligna Grewia schinzii Grewia schmitzii Grewia schweinfurthii Grewia sely Grewia similiopsis Grewia sinuata Grewia stenophylla Grewia subspathulata Grewia cuneifolia Grewia sambiranensis Grewia scabrella Grewia acuminata Grewia baillonii Grewia balensis Grewia baronii Grewia barteri Grewia bilocularis Grewia botryantha Grewia brachypoda Grewia bracteata Grewia breviflora Grewia brideliifolia Grewia bulot Grewia burretiana Grewia burttii Grewia calvata Grewia celtidifolia Grewia chalybaea Grewia chuniana Grewia comorensis Grewia concolor Grewia conferta Grewia coriacea Grewia cuspidato-serrata Grewia cyclopetala Grewia cylindrica Grewia damine Grewia densa Grewia denticulata Grewia diversipes Grewia douliotii Grewia eberhardtii Grewia elyseoi Grewia eriocarpa Grewia erythraea Grewia evrardii Grewia falcata Grewia falcistipula Grewia glandulosa Grewia glyphaeoides Grewia goetzeana Grewia hispida Grewia holstii Grewia holtzii Grewia kjellbergii Grewia kwangtungensis Grewia lacei Grewia laevigata Grewia lanceifolia Grewia lapiazicola Grewia latiglandulosa Grewia lavanalensis Grewia lepidopetala Grewia leptopus Grewia leucophylla Grewia louisii Grewia luteiflora Grewia macrophylla Grewia meizophylla Grewia meridionalis Grewia mesomischa Grewia micrantha Grewia microcarpa Grewia nitida Grewia occidentalis Grewia oligandra Grewia oxyphylla Grewia pachycalyx Grewia palawanensis Grewia peekelii Grewia pondoensis Grewia praecox Grewia pubescens Grewia pulverulenta Grewia rothii Grewia rugosifolia Grewia sahafariensis Grewia serratula Grewia serrulata Grewia setacea Grewia setaceoides Grewia speciosa Grewia stuhlmannii Grewia suarezensis Grewia subaequalis Grewia sulcata Grewia tahitensis Grewia tannifera Grewia tenax Grewia tephrodermis Grewia thikaensis Grewia thouvenotii Grewia tiliaecarpa Grewia tiliifolia Grewia tomentosa Grewia transzambesica Grewia triflora Grewia trinervia Grewia tristis Grewia truncata Grewia tsiandrensis Grewia tulearensis Grewia turbinata Grewia umbellifera Grewia urenifolia Grewia vernicosa Grewia viguieri Grewia viridiflora Grewia viscosa Grewia vitiensis Grewia voloina Grewia welwitschii Grewia winitii Grewia woodiana Grewia xanthopetala Grewia yinkiangensis Grewia zizyphifolia Grewia rufostellata Grewia rabehevitrae Grewia madagascariensis Grewia sessiliflora Grewia retusifolia Grewia capuronii Grewia gracilis Grewia gautieri Grewia hispidissima Grewia mabberleyana Grewia betulaefolia Grewia antsiranensis Grewia boivinii Grewia cloiselii Grewia guazumifolia Grewia rhomboides Grewia sessilifolia Grewia velutina Grewia brunnea Grewia abutilifolia Grewia rupestris Grewia capitellata Grewia decemovulata Grewia pamanziana Grewia pedunculata Grewia prunifolia Grewia suffruticosa Grewia amicorum Grewia bilamellata Grewia herbacea Grewia latifolia Grewia sapida Grewia sclerophylla Grewia serrata Grewia stolzii Grewia tembensis Grewia orbiculata Grewia celle Grewia cernua Grewia flavicans Grewia hildebrandtii Grewia nossibeensis Grewia langsonensis Grewia macropetala Grewia mariannensis Grewia maroana Grewia mayottensis Grewia megalocarpa Grewia microstemma Grewia palodensis Grewia polypyrena Grewia populoides Grewia radula Grewia repanda Grewia trinervata Grewia arborea Grewia bojeri Grewia manomboensis Grewia astropetala Grewia atrobrunnea Grewia australis Grewia bakeriana Grewia carrissoi Grewia cerocarpa Grewia cissoides Grewia hornbyi Grewia huluperakensis Grewia humbertii Grewia lorifolia Grewia lutea Grewia myriantha Grewia nagensium Grewia newtonii Grewia ogadenensis Grewia rhombifolia Grewia ribesioides Grewia ritchiei Grewia rizalensis Grewia rolfei Grewia rubescens Grewia salutaris Grewia villosa Grewia monticola Grewia asiatica Grewia trichocarpa Grewia similis Grewia kakothamnos