Kosteletzkya depressa

(Linnaeus) O. J. Blanchard

Gentes Herbarum 11: 357. 1978.

Common names: Stinging mallow white fen-rose
Illustrated
Basionym: Melochia depressa Linnaeus Sp. Pl. 2: 674 (as 774). 1753
Synonyms: Kosteletzkya pentasperma Grisebach
Treatment appears in FNA Volume 6. Treatment on page 273.

Plants often multistemmed, from fibrous-thickened root crown, 1–2 m, herbage variously hispid or scabrid, hairs stellate or simple. Stems sparingly to freely branched. Leaves: stipules linear-subulate, 2.5–6 mm; petiole of lower leaves 1/4–2/3 times blade; blade narrowly ovate to transversely ovate, sometimes palmately, hastately, or sagittately 3 (–5) -lobed, 3–8 × 1.5–6.5 cm, margins irregularly serrate to crenate, apex broadly acute to acuminate. Inflorescences solitary flowers in axils of distal leaves or leafy, open panicles. Pedicels exceeding petioles, sometimes blades; involucellar bractlets 6–7, linear to subulate, 2–3 mm. Flowers: calyx divided for 2/3–4/5+ its length, campanulate to rotate, 3.2–6 mm; corolla rotate, petals usually white, usually with yellow base, sometimes with pink blush, sometimes drying yellowish, asymmetrically ovate to orbiculate, 5–14 × 5–10 mm; staminal column straight or declinate, yellow, 4–10 mm, bearing filaments mostly in distal 1/2–2/3; filaments 1.5 mm; anthers subsessile, yellow; pollen yellow; styles white or pink, 1.5–2 mm; stigmas pink. Capsules olivaceous to brown, 8–11 mm diam., valve margins angulate or subangulate in outline, variously short-hairy, with prominent curved or hooked, simple hairs on sutures. Seeds brown, 2.5–2.8 mm, minutely hairy. 2n = 38 (Mexico, as K. pentasperma).


Phenology: Flowering fall.
Habitat: Freshwater and brackish marshes near coast
Elevation: 0–10 m

Distribution

V6 498-distribution-map.jpg

Fla., Tex., Mexico, West Indies, Central America, South America (Colombia), South America (Ecuador), South America (Peru), South America (Venezuela)

Discussion

Kosteletzkya depressa is variable and barely enters the flora area. The southern Texas plants conform more to Mexican populations in characters of leaves, fruits, and seeds; in the same characters, the southern Florida plants show affinity with populations of the Greater Antilles.

An earlier chromosome count of 2n = 34 for Kosteletzkya depressa (A. Skovsted 1941) has been shown to be incorrect (O. J. Blanchard 1974).

Plants of Kosteletzkya depressa are said to have stinging or irritating hairs.

Selected References

None.

Lower Taxa

None.

"divided" is not a number.

... more about "Kosteletzkya depressa"
broadly acute;acuminate +
Orland J. Blanchard Jr. +
(Linnaeus) O. J. Blanchard +
cordate +  and rounded or truncate +
Melochia depressa +
asymmetric +  and symmetric +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
3(-5)-lobed +, narrowly ovate +  and transversely ovate +
1.5 cm15 mm <br />0.015 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
linear +  and subulate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not spathaceous +
persistent +
campanulate +  and rotate +
accrescent +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
olivaceous +  and brown +
0.8 cm8 mm <br />0.008 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
indehiscent +  and loculicidal +
Stinging mallow +  and white fen-rose +
white +  and pink +
Fla. +, Tex. +, Mexico +, West Indies +, Central America +, South America (Colombia) +, South America (Ecuador) +, South America (Peru) +  and South America (Venezuela) +
0–10 m +
sparse;copious +
1.5 cm15 mm <br />0.015 m <br /> (?) +
pistillate +  and staminate +
unisexual +  and bisexual +
Freshwater and brackish marshes near coast +
scabrid +  and hispid +
tough-fibrous +
connate +  and distinct +
simple +, stipulate +, sessile +, subsessile +  and petiolate +
distichous +  and alternate +
triangular-ovate +
entire +  and serrate +
irregularly serrate;crenate +
wedge--shaped +
3-40-carpellate +
(1-)2-many +
open +  and leafy +
yellowish;white +
adnate +  and distinct +
5mm;14mm +
asymmetrically ovate;orbiculate +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1 cm10 mm <br />0.01 m <br /> (?) +
1/4-2/3 times blade +
Flowering fall. +
Gentes Herbarum +
fibrous-thickened +
reniform +
0.25 cm2.5 mm <br />0.0025 m <br /> (?) +  and 0.28 cm2.8 mm <br />0.0028 m <br /> (?) +
persistent +
Illustrated +
sessile +  and subsessile +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
ascending;erect +
filiform +, linear +  and capitate +
1-2 times number of carpels +
linear-subulate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
unbranched +  and branched +
pink +  and white +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Kosteletzkya pentasperma +
Kosteletzkya depressa +
Kosteletzkya +
species +
subangulate +  and angulate +
monoecious +, dioecious +  and hermaphroditic +