Wissadula parvifolia

Fryxell

Lundellia 10: 3, fig. 2. 2007.

Conservation concernEndemic
Treatment appears in FNA Volume 6. Treatment on page 375. Mentioned on page 374.

Plants branched, 1 m. Stems slender, minutely and obscurely stellate-hairy. Leaves: stipules minute; petiole 1–1.5 (–2) cm, to 1/3 times blade length, minutely and obscurely stellate-hairy; blade discolorous, ovate, 2.5–3.5 cm, base ± cordate, margins ± straight, apex acute to subobtuse. Inflorescences open racemes or panicles, ebracteate. Pedicels 2–3 cm. Flowers: calyx ca. 1/2-divided, 3–5 mm; petals yellow, fading to orange, 5 mm. Schizocarps minutely and obscurely hairy; mericarps 5, 7–9 mm. Seeds 2.5 mm, minutely hairy.


Phenology: Flowering summer.
Habitat: Roadsides, disturbed sites
Elevation: 100 m

Discussion

Of conservation concern.

Wissadula parvifolia is found only in Hidalgo County.

Selected References

None.

Lower Taxa

None.

"-1/3timesbladelength" is not declared as a valid unit of measurement for this property.

... more about "Wissadula parvifolia"
bulbous-apiculate +
acute;subobtuse +
Paul A. Fryxell† +  and Steven R. Hill +
Fryxell +
cordate +
asymmetric +  and symmetric +
discolorous +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
not inflated +
not accrescent +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
indehiscent +  and loculicidal +
white +  and yellowish +
sparse;copious +
pistillate +  and staminate +
unisexual +  and bisexual +
obovoid +  and not inflated +
Roadsides, disturbed sites +
axillary +  and terminal +
tough-fibrous +
connate +  and distinct +
distichous +  and alternate +
distalmost +
triangular +
wedge--shaped +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
3-40-carpellate +
(1-)2-many +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
fading;orange +
adnate +  and distinct +
5 cm50 mm <br />0.05 m <br /> (?) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
stellate-hairy +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering summer. +
reniform +
2.5 cm25 mm <br />0.025 m <br /> (?) +
persistent +
Conservation concern +  and Endemic +
sessile +  and subsessile +
not viscid +
stellate-hairy +
slender +
filiform +, linear +  and capitate +
1-2 times number of carpels +
subulate +  and filiform +
3-6-branched +
stellate-hairy +
Mallow +
Wissadula parvifolia +
Wissadula +
species +
monoecious +, dioecious +  and hermaphroditic +