Polycarpaea corymbosa (L.) Lam.

First published in Tabl. Encycl. 2: 129 (1797)
This species is accepted
The native range of this species is Tropics & Subtropics. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

Caryophyllaceae, W. B. Turrill. Flora of Tropical East Africa. 1956

Morphology General Habit
An annual herb, generally erect and often very strict, often branched from the base but sometimes with simple main stems, 5–38 cm. tall, internodes covered with more or less curled white hairs when young, often glabrescent when older.
Morphology Leaves
Leaves opposite or apparently whorled, narrowly linear, acute and then terminating in a hair-like bristle 1 mm. long and caducous, 5–30 mm. long, 0.5–1 mm. broad, 1-nerved, glabrous or nearly so when mature.
Morphology Reproductive morphology Inflorescences
Inflorescences terminal to branches, of many-flowered cymes, differing greatly in density (see below).
Morphology Reproductive morphology Flowers
Flowers silvery white to pink or purplish red.
Morphology Reproductive morphology Flowers Calyx
Sepals lanceolate, acuminate, 2.5–3.75 mm. long, glabrous.
Morphology Reproductive morphology Flowers Corolla
Petals about 1.25 mm. long, slightly emarginate or erose.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens usually 5, 0.75 mm. long.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary with 5–13 ovules; style 0.25 mm. long or even less.
Habitat
Weed of cultivated ground, roadsides, grassland, and woodland, particularly on sandy soils, 900–1800 m.
Distribution
widely distributed in the tropics of both the East and West Hemispheres K1 K4 K7 T1 T3 T4 T5 T6 T8 U1 U3 U4
[FTEA]

Caryophyllaceae, H. Wild. Flora Zambesiaca 1:2. 1961

Morphology General Habit
Annual erect herb up to 40 cm. tall, usually with strict stems, often unbranched, if branched, branches not very spreading, internodes with white curly hairs, glabrescent with age.
Morphology Leaves
Leaves 5–35 × 0·5–1 mm., opposite or more often sub-verticillate, sessile, linear, apex acute and with a terminal somewhat caducous hair-like bristle 1 mm. long, margins usually revolute, whitish woolly-hairy when young but soon glabrescent, 1-nerved; stipules 2–9 mm. long, membranous, whitish or brownish, narrowly lanceolate, terminated by a single hair or the lower ones with 2-several hairs.
Morphology Reproductive morphology Inflorescences
Inflorescence of many-flowered, dichotomous, loose or compact, terminal cymes, often with a single pedicellate flower between the main branches; bracts 2–6 mm. long, similar to the stipules but usually bifid, glabrous or somewhat hairy.
Morphology Reproductive morphology Flowers Calyx
Sepals silvery white, pink, purplish or a rich brown, 1·5–3·5 mm. long, membranous, lanceolate-acuminate, glabrous.
Morphology Reproductive morphology Flowers Corolla
Petals pinkish, 0·6–1·25 mm. long, ovate, rounded, slightly emarginate or erose at the apex.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens usually 5, 0·5–0·75 mm. long.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary ovoid or ellipsoid, 5–13-ovulate; style 0·15–0·25 mm. long, with 3 stigmatic arms.
Morphology Reproductive morphology Fruits
Capsule c. 1·5 × 1 mm., ellipsoid; valves shining and horny, brown with thin paler margins.
Morphology Reproductive morphology Seeds
Seeds pale brown, c. 0·45 × 0·27 mm., reniform.
[FZ]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Science Photographs

    • Copyright applied to individual images