Krigia wrightii

(A. Gray) K. L. Chambers ex K. J. Kim

Brittonia 44: 195. 1992.

Common names: Wright’s dwarfdandelion
IllustratedEndemic
Basionym: Apogon wrightii A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 411. 1884
Treatment appears in FNA Volume 19. Treatment on page 366. Mentioned on page 363, 364.

Annuals, 4–25 cm; taprooted. Stems erect, branching proximally and distally, leafy, eglandular or stipitate-glandular, especially distally. Leaves basal (rosettes) and cauline; blades broadly to narrowly oblanceolate, 1–10 cm, margins entire or remotely dentate or lobed, lobes acute or rounded, apices acute to obtuse, faces eglandular or lightly glandular-villous. Heads borne singly. Peduncles from branching, leafy stems. Involucres 3.5–5.5 mm. Phyllaries 5–9, erect in fruit, narrowly to broadly lanceolate, midveins becoming prominent in fruit, curving inward at bases to form keels, apices acute. Florets 5–25; corollas yellow, 4–7 mm. Cypselae reddish-brown, broadly columnar or barrel-shaped, 1.3–1.6 mm (apices slightly constricted, apical areas broader than basal areoles), 15-ribbed; pappi 0, or coroniform (minute scales, rarely with 1–5 tiny bristles). 2n = 18.


Phenology: Flowering Mar–May.
Habitat: Sandy, clay, loam, and rocky soils, fields, pastures, prairies, hillsides, and open oak-hickory and pine woods. sometimes in disturbed areas
Elevation: 10–300 m

Discussion

Krigia wrightii grows in the Eastern deciduous forest biome, southeastern Coastal Plain, tallgrass prairie, and mixedgrass prairie. It was confused with K. cespitosa by L. H. Shinners (1947); its cypselae, involucres, and chromosome number set it apart. It often grows sympatrically with K. occidentalis or K. cespitosa, and mixed collections may occur.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Krigia wrightii"
reduced +
scarious +
ovate +  and lanceolate +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
Kenton L. Chambers +  and Robert J. O’Kennon +
(A. Gray) K. L. Chambers ex K. J. Kim +
decurrent +
Apogon wrightii +
compound +  and simple +
oblanceolate +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
tuberculate +, rugose +, muricate +  and smooth +
filiform +
Wright’s dwarfdandelion +
zygomorphic +, actinomorphic +  and (3-)5-merous +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
reddish-brown +
barrel--shaped +  and columnar +
Ark. +, La. +, Okla. +  and Tex. +
10–300 m +
glandular-villous +
winged +  and beaked +
dispersed +
Sandy, clay, loam, and rocky soils, fields, pastures, prairies, hillsides, and open oak-hickory and pine woods. sometimes in disturbed areas +
indeterminate +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
turbinate;campanulate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
cauline +  and basal +
rounded +  and acute +
remotely dentate or lobed +  and entire +
lobed +, denticulate +  and entire +
2-carpellate +
persistent +
coroniform +
Flowering Mar–May. +
connate +  and distinct +
subequal +  and unequal +
low-convex;flat +
10 +  and 20 +
brownish;yellowish +
exalbuminous +
Illustrated +  and Endemic +
leafy +, branching +  and eglandular +
1 +  and 50 +
scapiform +
appendaged +  and truncate +
papillate +
Apogon +, Cymbia +, Cynthia +, Serinia +  and Troximon +
Krigia wrightii +
species +
globose +
4 cm40 mm <br />0.04 m <br /> (25 cm250 mm <br />0.25 m <br />) +
shrub +  and subshrub +
9] +, [6 +  and 5 +