Krigia cespitosa var. cespitosa

Treatment appears in FNA Volume 19. Treatment on page 367.

Involucres 2–4.5 mm in flower, 3.5–5 mm in fruit. Ligules 2–6 mm. 2n = 8.


Phenology: Flowering Feb–Sep.
Habitat: Sandy, clay, gravel, and loam soils, pastures, prairies, hillsides, roadsides, cultivated fields, and open mixed mesophytic, oak-pine, and oak-hickory woods and Coastal Plain pine communities
Elevation: 0–500 m

Distribution

V19-585-distribution-map.gif

Ala., Ark., Fla., Ga., Ill., Kans., Ky., La., Miss., Mo., Nebr., N.C., Okla., S.C., Tenn., Tex., Va., Mexico (Nuevo León)

Discussion

Variety cespitosa is known from the Eastern deciduous forest biome, southeastern Coastal Plain, tallgrass prairie, and mixedgrass prairie. Throughout its wide range, this variety is recognizable by its relatively small heads and florets barely surpassing the phyllaries. In eastern Texas and adjacent Louisiana and Oklahoma it is sympatric with the larger-headed, more showy-flowered var. gracilis, and plants of intermediate size frequently have been observed (K. J. Kim and B. L. Turner 1992). The treatment of the two morphologic races as varieties is an alternative to their being reduced to formae, which was the approach used by Kim and Turner.

Selected References

None.

Lower Taxa

None.

"fine" is not a number."broadest" is not a number.

reduced +
scarious +
ovate +  and lanceolate +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
Kenton L. Chambers +  and Robert J. O’Kennon +
(Rafinesque) K. L. Chambers +
decurrent +
Serinia cespitosa +
compound +  and simple +
oblanceolate;linear +
reduced +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
tuberculate +, rugose +, muricate +  and smooth +
filiform +
sessile +  and petiolate +
zygomorphic +, actinomorphic +  and (3-)5-merous +
0.2 cm2 mm <br />0.002 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
reddish-brown +  and brown +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Kans. +, Ky. +, La. +, Miss. +, Mo. +, Nebr. +, N.C. +, Okla. +, S.C. +, Tenn. +, Tex. +, Va. +  and Mexico (Nuevo León) +
0–500 m +
glandular-villous +  and glabrous +
winged +  and beaked +
dispersed +
Sandy, clay, gravel, and loam soils, pastures, prairies, hillsides, roadsides, cultivated fields, and open mixed mesophytic, oak-pine, and oak-hickory woods and Coastal Plain pine communities +
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 /> (0.5 cm5 mm <br />0.005 m <br />) +
cauline +  and basal +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rounded +  and acute +
dentate +  and entire +
lobed +, toothed +  and entire +
not prominent +  and evident +
2-carpellate +
persistent +
Flowering Feb–Sep. +
connate +  and distinct +
5 +  and 10 +
subequal +  and unequal +
J. Arnold Arbor. +
low-convex;flat +
10 +  and 20 +
brownish;yellowish +
exalbuminous +
Illustrated +
leafy +, branching +, eglandular +  and branched +
ascending +  and erect +
1 +  and 50 +
scapiform +
appendaged +  and truncate +
papillate +
Apogon +, Cymbia +, Cynthia +, Serinia +  and Troximon +
Krigia cespitosa var. cespitosa +
Krigia cespitosa +
variety +
globose +
4 cm40 mm <br />0.04 m <br /> (42 cm420 mm <br />0.42 m <br />) +
shrub +  and subshrub +
9] +, [6 +  and 5 +