Sida lindheimeri

Engelmann & A. Gray

Boston J. Nat. Hist. 5: 213. 1845.

Common names: Lindheimer’s sida
Synonyms: Sida elliottii var. texana Torrey & A. Gray S. texana (Torrey & A. Gray) Small
Treatment appears in FNA Volume 6. Treatment on page 315. Mentioned on page 312.

Herbs or subshrubs, perennial, 1 m. Stems erect, minutely and sparsely stellate-hairy. Leaves: stipules free from petiole, 1-veined, linear, 4–8 mm, 1/2–1 times length of corresponding petiole; petiole 6–17 mm, to 1/4 length of blade, obscurely hairy; blade narrowly lanceolate or elliptic, 2.5–7 cm, 6–10 times longer than wide, base truncate, margins dentate to base, apex acute, surfaces obscurely hairy abaxially, glabrate adaxially. Inflorescences axillary solitary flowers. Pedicels slender, 2–4 (–6) cm, often equaling subtending leaf, much longer than calyx. Flowers: calyx ribbed, 7–10 mm, obscurely stellate-hairy, lobes triangular; petals yellow, 12–17 mm; staminal column sparsely hairy; style 8–10-branched. Schizocarps oblate, 8–9 mm diam., apically hairy; mericarps 8–10, laterally reticulate, apex spined, spines 1 mm. 2n = 28.


Phenology: Flowering spring–fall.
Habitat: Open, sandy shrublands and woodlands
Elevation: 10–300 m

Distribution

V6 575-distribution-map.jpg

La., Tex., Mexico (Tamaulipas)

Discussion

Specimens from Florida identified as Sida lindheimeri are generally misidentified individuals of S. elliottii. Sida lindheimeri is widespread and occasionally common in south-central and southernmost Texas in approximately 40 counties, and it has been reported from Cameron and East Feliciana parishes in Louisiana.

Selected References

None.

Lower Taxa

None.

"lengthofblade" is not declared as a valid unit of measurement for this property."/2-1timeslengthof" is not declared as a valid unit of measurement for this property.

... more about "Sida lindheimeri"
Paul A. Fryxell† +  and Steven R. Hill +
Engelmann & A. Gray +
rounded +, truncate +, subcordate +, cordate +  and cuneate +
asymmetric +  and symmetric +
elliptic +  and lanceolate +
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
stellate-hairy +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
indehiscent +  and loculicidal +
Lindheimer’s sida +
reddish +, red-orange +, salmon-pink +, yellow-orange +, yellow +, cream +  and white +
La. +, Tex. +  and Mexico (Tamaulipas) +
well-differentiated +
10–300 m +
sparse;copious +
pistillate +  and staminate +
unisexual +  and bisexual +
hairy +  and glabrous +
muticous +
Open, sandy shrublands and woodlands +
tough-fibrous +
connate +  and distinct +
dehiscent +  and indehiscent +
subsessile +  and petiolate +
triangular +
wedge--shaped +
3-40-carpellate +
(1-)2-many +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
adnate +  and distinct +
1.2 cm12 mm <br />0.012 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Flowering spring–fall. +
Boston J. Nat. Hist. +
8mm +  and 9mm +
reniform +
persistent +
sessile +  and subsessile +
1 cm10 mm <br />0.01 m <br /> (?) +
stellate-hairy +
filiform +, linear +  and capitate +
1-2 times number of carpels +
usually linear +  and lanceolate or falcate +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
8-10-branched +
glabrate +  and hairy +
Sida elliottii var. texana +  and S. texana +
Sida lindheimeri +
species +
subshrub +  and herb +
monoecious +, dioecious +  and hermaphroditic +