Sida ulmifolia

Miller

Gard. Dict. ed. 8, Sida no. 1. 1768.

Common names: Broomweed escobilla southern sida common wire-weed
Synonyms: Sida acuta var. intermedia S. Y. Hu S. balbisiana de Candolle S. brachypetala de Candolle S. carpinifolia Miller S. carpinifolia var. balbisiana (de Candolle) Millspaugh S. carpinifolia var. brevicuspidata Grisebach
Treatment appears in FNA Volume 6. Treatment on page 319. Mentioned on page 310, 311.

Herbs or subshrubs, perennial, branches distichous, 1 m. Stems erect, minutely stellate-hairy. Leaves distichous; stipules free from petiole, 1–3 (–5) -veined, broadly falcate, 6–12 mm, often exceeding petiole; petiole (1–) 4–5 (–8) mm, ca. 1/10 blade length, obscurely stellate-hairy; blade lanceolate to ovate, 3–9 cm, 2–4 times longer than wide, base cuneate to rounded, margins serrate at least distally, apex acute, surfaces hirsute to glabrate. Inflorescences axillary solitary or paired flowers, sometimes more and subumbellate. Pedicels jointed near base, 0.2–0.5 (–0.8) cm, subequal to calyx and subtending petiole. Flowers: calyx ribbed, 6–8 mm, often ciliate, lobes triangular; petals yellow, 7–10 (–12) mm; staminal column glabrous or hairy; style 7–12-branched. Schizocarps subconic, 5–7 mm, glabrous; mericarps 7–12, 3–4 mm, laterally reticulate, apex spined, spines to 0.5 mm. 2n = 28.


Phenology: Flowering year-round.
Habitat: Disturbed sites, principally coastal
Elevation: 0–50 m

Distribution

V6 585-distribution-map.jpg

Fla., Mexico, West Indies, Central America, South America (Bolivia), South America (Brazil), South America (Colombia), South America (Guyana), South America (Venezuela), s Asia, Africa, Pacific Islands, Australia

Discussion

Sida ulmifolia is pantropical and weedy but thought to have originated in Central America. In previous floras it and S. planicaulis have been treated as S. acuta Burman f., but that is a different species from those from Brazil, Guatemala, Mozambique, Sri Lanka, southeastern Asia, several Pacific islands, and Australia. Under different names, S. ulmifolia has been reported also from New Jersey and ballast.

Selected References

None.

Lower Taxa

None.

"stellate-hairy" is not a number.

... more about "Sida ulmifolia"
Paul A. Fryxell† +  and Steven R. Hill +
Miller +
cuneate +  and rounded +
asymmetric +  and symmetric +
lanceolate +  and ovate +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
1 cm10 mm <br />0.01 m <br /> (?) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
indehiscent +  and loculicidal +
Broomweed +, escobilla +, southern sida +  and common wire-weed +
reddish +, red-orange +, salmon-pink +, yellow-orange +, yellow +, cream +  and white +
Fla. +, Mexico +, West Indies +, Central America +, South America (Bolivia) +, South America (Brazil) +, South America (Colombia) +, South America (Guyana) +, South America (Venezuela) +, s Asia +, Africa +, Pacific Islands +  and Australia +
well-differentiated +
0–50 m +
sparse;copious +
pistillate +  and staminate +
unisexual +  and bisexual +
hairy +  and glabrous +
muticous +
Disturbed sites, principally coastal +
paired +, solitary +  and axillary +
tough-fibrous +
connate +  and distinct +
dehiscent +  and indehiscent +
subsessile +  and petiolate +
triangular +
wedge--shaped +
7 cm70 mm <br />0.07 m <br /> (12 cm120 mm <br />0.12 m <br />) +
3-40-carpellate +
(1-)2-many +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
subequal +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
adnate +  and distinct +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering year-round. +
Gard. Dict. ed. +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
reniform +
persistent +
sessile +  and subsessile +
0.5 cm5 mm <br />0.005 m <br /> (?) +
hairy +  and glabrous +
stellate-hairy +
filiform +, linear +  and capitate +
1-2 times number of carpels +
1-3(-5)-veined +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
7-12-branched +
hirsute +  and glabrate +
Sida acuta var. intermedia +, S. balbisiana +, S. brachypetala +, S. carpinifolia +, S. carpinifolia var. balbisiana +  and S. carpinifolia var. brevicuspidata +
Sida ulmifolia +
species +
subshrub +  and herb +
monoecious +, dioecious +  and hermaphroditic +