Krigia cespitosa

(Rafinesque) K. L. Chambers

J. Arnold Arbor. 54: 52. 1973.

Common names: Common or opposite-leaved dwarfdandelion
Illustrated
Basionym: Serinia cespitosa Rafinesque Fl. Ludov., 149. 1817
Treatment appears in FNA Volume 19. Treatment on page 367. Mentioned on page 363.

Annuals, 4–42 cm; taprooted. Stems erect or ascending, branched, eglandular or stipitate-glandular, especially distally. Leaves basal and cauline; petiolate (at least basal); blades broadly to narrowly oblanceolate, 2–15 cm, margins entire or remotely toothed or lobed, lobes acute or rounded, apices acute to obtuse, faces glabrous or lightly glandular-villous; cauline appearing unequal and opposite proximal to distal peduncles, petiolate or sessile, blades oblanceolate to linear, gradually reduced, bases ± clasping, margins entire or dentate. Heads borne singly. Peduncles from branching, leafy stems. Involucres 2–8 mm. Phyllaries 5–10, erect in fruit, narrowly to broadly lanceolate, midveins evident, not prominent or keeled, apices acute. Florets 12–35; corollas yellow, 2–11 mm (barely equaling to much surpassing phyllaries). Cypselae fusiform, 1.4–1.7 mm, broadest at or ± beyond middles (apical areas ± equal to basal areoles), 15-ribbed; pappi 0.2n = 8.

Distribution

V19-584-distribution-map.gif

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

Discussion

Varieties 2 (2 in the flora).

The name Krigia oppositifolia Rafinesque, long in use for this species, was not accepted by Rafinesque in his original publication and is therefore invalid.

Selected References

None.

Key

1 Involucres 2–4.5 mm in flower, 3.5–5 mm in fruit; ligules 2–6 mm Krigia cespitosa var. cespitosa
1 Involucres 4.5–7 mm in flower, 5.5–8.5 mm in fruit; ligules 6.5–11 mm Krigia cespitosa var. gracilis

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

... more about "Krigia cespitosa"
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 +
Common or opposite-leaved dwarfdandelion +
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. +, N.C. +, Nebr. +, Okla. +, S.C. +, Tenn. +, Tex. +, Va. +  and ne Mexico +
glandular-villous +  and glabrous +
winged +  and beaked +
dispersed +
indeterminate +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
turbinate;campanulate +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cauline +  and basal +
rounded +  and acute +
dentate +  and entire +
lobed +, toothed +  and entire +
not prominent +  and evident +
2-carpellate +
persistent +
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 +
species +
globose +
4 cm40 mm <br />0.04 m <br /> (42 cm420 mm <br />0.42 m <br />) +
shrub +  and subshrub +
9] +, [6 +  and 5 +