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Sanguisorbeae

(Tribe)

Overview

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Sanguisorbeae is a tribe of the rose family, Rosaceae. It contains 16 genera in two subtribes, Agrimoniinae and Sanguisorbinae.

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Taxonomy

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The Tribe Sanguisorbeae is a member of the Subfamily Potentilloideae. Here is the complete "parentage" of Sanguisorbeae:

The Tribe Sanguisorbeae is further organized into finer groupings including:

Genera

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Acaena

Acaena is a genus of about one hundred species of perennial herbs and subshrubs in the Rosaceae, native mainly to the Southern Hemisphere, notably New Zealand, Australia and South America, but with a few species extending into the Northern Hemisphere, north to Hawaii (A. exigua) and California (A. pinnatifida). [more]

Agrimonia

Agrimonia, commonly known as Agrimony, is a genus of 12-15 species of perennial herbaceous flowering plants in the family Rosaceae, native to the temperate regions of the Northern Hemisphere, with one species also in Africa. The species grow to between 0.5?2 m tall, with interrupted pinnate leaves, and tiny yellow flowers borne on a single (usually unbranched) spike. [more]

Aremonia

Aremonia is a genus of plants belonging to the family of Rosaceae or roses. [more]

Bencomia

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Cliffortia

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Hagenia

Hagenia abyssinica is a species of native to the high-elevation Afromontane regions of central and eastern Africa. It also has a disjunct distribution in the high mountains of East Africa from Sudan and Ethiopia in the north, through Kenya, Uganda, Rwanda, Burundi, Democratic Republic of Congo, and Tanzania, to Malawi and Zambia in the south. [more]

Leucosidea

Leucosidea sericea, commonly known as Oldwood, is a species of evergreen tree and large shrub native to the regions of Southern Africa. It is the sole species of genus Leucosidea. [more]

Margyricarpus

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Polylepis

Polylepis (pronounced pol-ee-LEP-iss) is a genus comprising about twenty species of shrubs or trees native to the mid- and high-elevation regions of the tropical Andes. This group is unique in the rose family in that it is predominantly wind-pollinated. They are usually gnarled in shape, but in certain areas some trees are 15-20 m tall and have 2 m-thick trunks. The foliage is evergreen, with dense small leaves, and often having large amounts of dead twigs hanging down from the underside of the canopy. The name Polylepis is, in fact, derived from the Greek words poly (many) plus letis (layers), referring to the shredding, multi-layered bark that is common to all species of the genus. The bark is thick and rough and densely layered for protection against low temperatures. Some species of Polylepis form woodlands growing well above normal tree line within grass and scrub associations at elevations over 5000 m; which makes Polylepis appear to be the highest naturally occurring arborescent angiosperm genus in the world. [more]

Sanguisorba

Sanguisorba is a genus of 15-20 species of perennial herbs or small shrubs in the family Rosaceae, native to the temperate regions of the Northern Hemisphere. The common name is Burnet. The stems grow to 50-200 cm tall, with a cluster of basal leaves, and further leaves arranged alternately up the stem. The leaves are pinnate, 5-30 cm long, with 7-25 leaflets, the leaflets with a serrated margin. Young leaves grow from the crown in the center of the plant. The flowers are small, produced in dense clusters 5-20 mm long; each flower has four very small petals, white to red in color. [more]

Sarcopoterium

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Spenceria

Herbs perennial, white villous throughout. Rhizome woody, densely covered with remains of old petioles. Stems erect, terete, simple. Radical leaves: stipules ovate, herbaceous, adnate to petiole; petiole sheathing at base; leaf blade imparipinnate; leaflets opposite, rarely alternate, broadly elliptic or obovate-oblong; cauline leaves few, with few leaflets, or simple and then margin 3-lobed or 2- or 3-serrate. Inflorescences terminal, laxly racemose; bract entire or 3-lobed; involucre close to petals, cupular, 7- or 8-lobed, lobes narrowly ovate to lanceolate. Hypanthium obconic. Sepals 5, valvate, broadly linear to lanceolate, persistent; epicalyx segments 5, semiorbicular or triangular. Petals 5, golden or cream, oblanceolate to obovate. Stamens 30-40, in 2 or 3 series; filaments dilated and connate at base, persistent. Carpels (1 or) 2, at base of hypanthium, apically villous; ovary ovoid-cylindric; ovule 1, pendulous; style subterminal, filiform, long exserted from hypanthium; stigma minute. Fruit composed of flower parts excluding deciduous petals, dry and somewhat hardened. Achene 1, subglobose, with thin coat, enclosed in hypanthium. Seed lacking endosperm; cotyledons subsquare, large.[1] [more]

Tetraglochin

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At least 30 species and subspecies belong to the Genus Tetraglochin.

More info about the Genus Tetraglochin may be found here.

References

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Bibliography

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Footnotes

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  1. Li Chao-luang, Hiroshi Ikeda, Hideaki Ohba "Spenceria". in Flora of China Vol. 9 Page 384. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Sources

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Last Revised: August 24, 2012
2012/08/24 13:51:20