Difference between revisions of "Urena"
Sp. Pl. 2: 692. 1753.
Gen. Pl. ed. 5, 309. 1754.
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|publication year=1753;1754 | |publication year=1753;1754 | ||
|special status=Introduced | |special status=Introduced | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V6/V6_692.xml |
|subfamily=Malvaceae subfam. Malvoideae | |subfamily=Malvaceae subfam. Malvoideae | ||
|genus=Urena | |genus=Urena |
Revision as of 22:06, 16 December 2019
Herbs, perennial, subshrubs, or shrubs, stellate-hairy or glabrate. Stems erect. Leaves: stipules early-deciduous, subulate; blade variable, sometimes ovate, [oblong or lanceolate], often 3–5-angled, -lobed, or –parted, base truncate to cordate, margins crenate [serrate], surfaces minutely stellate-hairy, with 1+ prominent, foliar nectaries (glands) on abaxial side at base of central vein. Inflorescences axillary solitary flowers or fascicles, [terminal racemes]; involucel present, bractlets persistent, 5, basally connate. Pedicels 1.5–7 mm. Flowers: calyx not accrescent, not inflated, lobes keeled, 1-veined, lanceolate, elliptic to ovate, usually acute, usually obscured by involucel; corolla shallowly campanulate to rotate, rose-pink, drying lavender; staminal column included; ovary 5-carpellate; ovules 1 per cell; style 10-branched, 2 per carpel; stigmas capitellate. Fruits schizocarps, erect, not inflated, oblate, unwinged, slightly indurate; mericarps 5, 1-celled, without dorsal spur, apex rounded, dorsal surface prominently glochidiate [smooth], otherwise hirtellous or glabrous, flat lateral surfaces striate, indehiscent. Seeds 1 per mericarp, obovoid or reniform, glabrous. x = 7.
Distribution
nearly worldwide in tropical and warm regions.
Discussion
Species 6 (1 in the flora).
Selected References
None.