Flora of North America species comparison

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Sida rhombifolia

arrowleaf sida, axocatzín, Cuba jute, Cuban jute, escobilla, huinar, rhombus-leaf sida, sida
Habit Subshrubs, 1 m.
Stems

erect, stellate-puberulent, hairs to 0.1 mm.
Leaves

stipules free from petiole, 1-veined, subulate, 5–6 mm, subequal to petiole;

petiole 5–7 mm, 1/10–1/4 length of blade, stellate-puberulent;

blade ± rhombic, 2.5–9 cm, smaller distally, 2–3(–4) times longer than wide, base usually cuneate, sometimes somewhat truncate to subcordate, margins serrate distally, entire basally, apex acute to subobtuse, surfaces stellate-puberulent or glabrescent adaxially.
Inflorescences

axillary solitary flowers.
Pedicels

slender, (1–)3–4 cm, 4–6 times length of calyx, much shorter than to ± equaling subtending leaf, at least distalmost.
Flowers

calyx ribbed, 5–6 mm, puberulent, lobes ovate;

petals yellow, 7–9 mm;

staminal column hairy;

style 10–14-branched.
Schizocarps

subconic, 4–5 mm diam., glabrous;

mericarps 10–14, 3–4 mm, laterally reticulate, apex muticous to spined, sometimes 1-spined through failure of dehiscence, glabrous.
2n

= 14, 28.

Sida rhombifolia
Phenology Flowering year-round in warmer localities.
Habitat Disturbed sites, roadsides, pastures, urban areas
Elevation 0–1500 m (0–4900 ft)
Distribution
from FNA
AL; AR; FL; GA; KS; LA; MS; NC; OK; SC; TX; VA; s Asia (China) [Introduced in North America; introduced also in Mexico, West Indies, Central America, South America, tropical Africa, Pacific Islands (Philippines, Polynesia), Australia]
[WildflowerSearch map]
[BONAP county map]
Discussion

Sida rhombifolia is found occasionally on ballast in New Jersey and Pennsylvania. It is a common weed in warm-temperate, subtropical, and tropical areas; its genetic diversity seems to indicate that it was introduced from the Old World. The species has been cultivated for medicinal and cordage use.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 6, p. 317.
Parent taxa Malvaceae > subfam. Malvoideae > Sida
Sibling taxa
S. abutilifolia, S. antillensis, S. ciliaris, S. cordifolia, S. elliottii, S. glabra, S. hermaphrodita, S. lindheimeri, S. littoralis, S. longipes, S. neomexicana, S. planicaulis, S. rubromarginata, S. santaremensis, S. spinosa, S. tragiifolia, S. ulmifolia, S. urens
Synonyms S. hondensis, S. rhomboidea
Name authority Linnaeus: Sp. Pl. 2: 684. (1753)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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