Callirhoë scabriuscula

B. L. Robinson in A. Gray et al.

in A. Gray et al., Syn. Fl. N. Amer. 1(1,2): 302. 1897.

Common names: Texas poppy mallow
Conservation concernEndemic
Treatment appears in FNA Volume 6. Treatment on page 245. Mentioned on page 240.

Plants perennial. Stems 1 (–6), stiffly erect, 3.2–10 dm, densely hairy, hairs 6–8-rayed, stellate. Leaves: stipules persistent, linearlanceolate, 5.8–8.5 mm; petiole 1.5–10 cm; blade suborbiculate, 3-lobed or 5-lobed, 4–6.5 × 3.8–7 cm, surfaces stellate-hairy, lobes oblong to oblanceolate or linear-oblanceolate. Inflorescences racemose; involucellar bractlets (1–) 3, linear, 5.5–10 × 0.7–1.5 mm. Flowers bisexual; calyx lobes valvate in bud, forming apiculate or acuminate point; petals reddish purple with deep-red basal spot, 3–3.7 (–4) cm. Schizocarps 7.8–12 mm diam.; mericarps 12–20, 4.2–5 × 3.2–4 mm, hairy, indehiscent; beaks not prominent, 0.7–2 mm; collars absent. 2n = 30.


Phenology: Flowering spring.
Habitat: Quaternary (Holocene) wind-blown sand deposits
Elevation: 600 m

Discussion

Of conservation concern.

Callirhoë scabriuscula is found only in west-central Texas along the upper Colorado River where it has adapted to a rare edaphic niche, relict Quaternary sand dunes. Plants produce taproots up to one meter long. The U.S. Fish and Wildlife Service lists this species as endangered.

Callirhoë scabriuscula is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Callirhoë scabriuscula"
Laurence J. Dorr +
B. L. Robinson in A. Gray et al. +
sagittate +  and hastate +
not prominent +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
4 cm40 mm <br />0.04 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
5-lobed +, 3-lobed +  and suborbiculate +
3.8cm;7cm +
0.55 cm5.5 mm <br />0.0055 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
indehiscent +  and loculicidal +
Texas poppy mallow +
sparse;copious +
pistillate +  and staminate +
dehiscent;indehiscent +
glabrous +  and strigose +
depressed-discoid +, oblate +  and not inflated +
Quaternary (Holocene) wind-blown sand deposits +
axillary +  and terminal +
tough-fibrous +
connate +  and distinct +
simple +, stipulate +, sessile +, subsessile +  and petiolate +
distichous +  and alternate +
oblong +  and oblanceolate or linear-oblanceolate +
entire +  and serrate +
Brown (?) +, Tan (?) +  and Drying (?) +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
wedge--shaped +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
3-40-carpellate +
(1-)2-many +
3.7 cm37 mm <br />0.037 m <br /> (4 cm40 mm <br />0.04 m <br />) +
adnate +  and distinct +
3 cm30 mm <br />0.03 m <br /> (3.7 cm37 mm <br />0.037 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering spring. +
acuminate +  and apiculate +
in A. Gray et al., Syn. Fl. N. Amer. +
dorr1994a +
7.8mm +  and 12mm +
reniform-pyriform +  and reniform +
persistent +
Conservation concern +  and Endemic +
sessile +  and subsessile +
filiform +  and decurrent +
1-2 times number of carpels +
? (?) +, ? (?) +, ? (?) +  and ? (?) +
0.58 cm5.8 mm <br />0.0058 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
10-28-branched +
stellate-hairy +
Mallow +
Callirhoë scabriuscula +
Callirhoë +
species +
glaucous +, glabrous +  and hairy +
monoecious +, dioecious +  and hermaphroditic +