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• Taxonomy
• Physical Description
• Distribution
• Similar Species
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Taxonomy

Physical Description

Family Rubiaceae:

The Rubiaceae are trees, shrubs, or infrequently herbs comprising about 450 genera and 6,500 species, including some lianous forms. The leaves are simple and usually entire, and are opposite or sometimes whorled; stipules are present and interpetiolar. The flowers are nearly always bisexual and actinomorphic, often heterostylous, and usually are in cymose inflorescences. The calyx is mostly somewhat reduced and 4-5-lobed or sometimes the lobes are obsolete or rarely one of them greatly expanded and brightly colored. The sympetalous corolla is mostly 4-5-lobed, occasionally with 3 or up to 10 lobes. The androecium consists of as many stamens as corolla lobes and is adnate to the corolla tube or epigynous zone, alternate with the lobes. The gynoecium consists of a single compound pistil of 2 or seldom more carpels, a single style, and a nearly always inferior ovary with the number of locules equaling the number of carpels, each with 1-many axile ovules. An epigynous nectary disk is usually present. The fruit is variable, sometimes forming multiples. -- Gerald Carr.

Distribution

Similar Species

Members of the genus Spermacoce:

There are approximately 398 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them: S. abbreviata · S. abyssinica · S. adscendens · S. aequabilis · S. alata (Borreria) · S. albiflora · S. alternans · S. angustifolia · S. annua · S. anthospermoides · S. aprica · S. aquatica · S. arenicola · S. aretiodes · S. aretioides · S. argentea · S. argillacea · S. arida · S. aristeguietiana · S. armeniaca · S. articularis · S. arvensis · S. ascendens · S. asperula · S. assirgens · S. aurantiseta · S. auriculata · S. australiana · S. avenia · S. azurea · S. bahamensis · S. bahiana · S. baileyana · S. balansae · S. bambusicola · S. bangweolensis · S. bequaertii · S. berteroana · S. bisepala · S. bolivarensis · S. brachiata · S. brachyantha · S. brachysepala (West Indian False Buttonweed) · S. brachystema · S. brachystema subvar. brachystema · S. brachystema subvar. chillagoensis · S. brachystema subvar. tryonii · S. brachystema var. brachystema · S. brachystemodes · S. brachystemonoides · S. bradei · S. brassii · S. brevicilia · S. brevidens · S. breviflora · S. brittonii · S. brownii · S. buchneri · S. buckleyi · S. burmanni · S. burmannii · S. buruensis · S. caerulea · S. caerulescens · S. calliantha · S. calyptera · S. campacta · S. capillaris · S. capitata (Baldhead False Buttonweed) · S. capitata var. tenella · S. cardiophora · S. carolinensis · S. casmae · S. cassuangensis · S. cataractarum · S. caudata · S. centranthodes · S. cephalophora · S. chacoensis · S. chaetocephala · S. chartensis · S. clinopodioides · S. coerulea · S. confertifolia · S. congensis · S. congestanthera · S. constricta · S. cristulata · S. cupularis · S. cylindrata · S. daphnoides · S. dasycephala (Carretilla) · S. debilis · S. decipiens · S. decurrens · S. delicatula · S. denseflora · S. densiflora (Bouquet False Buttonweed) · S. denticulata · S. depressa

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Notes

Identifiers:

• Global Biodiversity Information Facility Taxonkey: 17512444
• Zipcode Zoo Species Identifier: 2248457