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Taxonomy

Notes:

An accepted name in the RHS Horticultural Database.

Physical Description

Family Crassulaceae:

Herbs, subshrubs, or shrubs. Stems mostly fleshy. Leaves alternate, opposite, or verticillate, usually simple; stipules absent; leaf blade entire or slightly incised, rarely lobed or imparipinnate. Inflorescences terminal or axillary, cymose, corymbiform, spiculate, racemose, paniculate, or sometimes reduced to a solitary flower. Flowers usually bisexual, sometimes unisexual in Rhodiola (when plants dioecious or rarely gynodioecious), actinomorphic, (3 or) 4-6(-30) -merous. Sepals almost free or basally connate, persistent. Petals free or connate. Stamens as many as petals in 1 series or 2 × as many in 2 series. Nectar scales at or near base of carpels. Follicles sometimes fewer than sepals, free or basally connate, erect or spreading, membranous or leathery, 1- to many seeded. Seeds small; endosperm scanty or not developed.

About 35 genera and over 1500 species: Africa, America, Asia, Europe; 13 genera (two endemic, one introduced) and 233 species (129 endemic, one introduced) in China.

Some species of Crassulaceae are cultivated as ornamentals and/or used medicinally.^[1]

Genus Sedum:

Herbs annual or perennial, mostly glabrous, less often hairy. Roots normally fibrous. Rootstock usually not developed, occasionally plants rhizomatous. Stems erect or decumbent, sometimes fasciculate or mosslike, fleshy, glabrous or hairy, base rarely woody. Leaves alternate, opposite, or verticillate, base often spurred, margin normally entire (4-8-dentate in Sedum rosthornianum and remotely dentate in S. engleri var. dentatum) . Inflorescence terminal or axillary, cymose, often corymbiform, 1- to many flowered. Flowers usually bisexual, rarely unisexual, mostly unequally (3-) 5(-9) -merous. Sepals and petals free or basally connate. Petals free or almost so, mostly yellow, less often white or reddish. Stamens usually 2 × as many as petals, in 2 series, rarely equal in number to petals and in 1 series; antepetalous ones adnate to petal base or slightly above. Nectar scales entire or apex emarginate. Carpels usually as many as petals, occasionally fewer, free or basally widened and connate. Styles short or long. Follicles many or few seeded. Seeds smooth or papillate, less often striate.

About 470 species: mainly in the N hemisphere, but extending to the S hemisphere in Africa and South America; 121 species (91 endemic) in China.^[2]

Images:

Similar Species

Members of the genus Sedum:

There are approximately 2,016 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them: S. acre majus · S. acre microphyllum · S. aetnense tetramerum · S. aizoon baicalense · S. aizoon maximowiczii · S. alpestre erythraeum · S. annuum gussonei · S. calcicola desertorum · S. chrysanthum aizoon · S. dasyphyllum granatense · S. dendroideum monticola · S. dendroideum parvifolium · S. douglasii douglasii · S. ebracteatum grandifolium · S. ebracteatum typicum · S. erici-magnusii chilianense · S. eriocarpum epiroticum · S. eriocarpum porphyreum · S. erythrospermum australe · S. flexuosum kostovii · S. greggii angustifolium · S. grisebachii flexuosum · S. himalense taohoense · S. jaliscanum angustifolium · S. japonicum boninense · S. japonicum oryzifolium · S. japonicum uniflorum · S. jurgensenii attenuatum · S. laconicum pentapolitanum · S. lanceolatum lanceolatum · S. lanceolatum nesioticum · S. laxum typicum · S. longipes rosulare · S. middendorfianum sichotense · S. minimum delicatum · S. moranense grandiflorum · S. mucizonia abylaeum · S. mucizonia urceolatum · S. multicaule rugosum · S. nicaense dianium · S. nudum lancerottense · S. obtusatum typicum · S. obtusipetalum dandyanum · S. palmeri emarginatum · S. parvisepalum philippinensis · S. parvum dendroides · S. parvum diminutum · S. parvum robertsianum · S. pluricale hidakanum · S. pluricaule ezawae · S. polytrichoides yabeanum · S. praealtum monticola · S. praealtum parvifolium · S. quadrifidum coccineum · S. reptans carinatifolium · S. rhodocarpum edwardsii · S. roseum arcticum · S. roseum frigidum · S. sikokianum kurilense · S. spathulifolium pruinosum · S. stenopetalum nesioticum · S. stenopetalum typicum · S. subtile chinense · S. telephium caucasicum · S. tosaense sinense · S. uniflorum boninense · S. uniflorum japonicum · S. uniflorum oryzifolium · S. uniflorum rugosum · S. urvillei hillebrandtii · S. urvillei sartorianum · S. wrightii densiflorum · S.'Abbey Dore' (Abbey Dore Stonecrop) · S. 'Abbeydore' · S. 'African Pearl' · S. 'Bertram Anderson' (Showy Stonecrop) · S. 'Black Emperor' · S. 'Black Jack' (Autumn Stonecrop) · S. 'Carl' (Carl Sedum) · S. 'Chocolate' · S. 'Citrus Twist' (Showy Stonecrop) · S. 'Cloud Walker' (Showy Stonecrop) · S. 'Coral Blush' · S. 'Coral Sunset' · S. 'Crazy Ruffles' · S. 'Czar' (Czar's Gold Stonecrop) · S. 'Dudley Field' · S. 'Eleanor Fisher' · S. 'Evening Cloud' · S. 'Fabianum' · S. 'Garbro' · S. 'Garnet Brocade' (Garnet Brocade Showy Stonecrop) · S. 'Gold Digger' (Gold Digger Stonecrop) · S. 'Gold Mound' · S. 'Golden Moon' (Showy Stonecrop) · S. 'Great Expectations' · S. 'Green Expectations' · S. 'Harvest Moon' · S. 'Herbstfreude' · S. 'Hidakense'

Bibliography

• Fu Shu-hsia & Fu Kun-tsun. 1984. Crassulaceae. In: Fu Shu-hsia & Fu Kun-tsun, eds., Fl. Reipubl. Popularis Sin. 34(1): 31-220.

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Notes

Contributors:

• Brands, S.J. (comp.) 1989-2006. Systema Naturae 2000. The Taxonomicon. Universal Taxonomic Services, Amsterdam, The Netherlands. Accessed November 8, 2006.

Identifiers:

• Zipcode Zoo Species Identifier: 904250

Footnotes:

1. Kunjun Fu, Hideaki Ohba & Michael G. Gilbert "Crassulaceae". in Flora of China Vol. 8 Page 202. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.
2. "Sedum". in Flora of China Vol. 8 Page 221. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.