Mulgedium pulchellum

(Pursh) G. Don in R. Sweet

in R. Sweet, Hort. Brit. ed. 3, 418. 1839.

IllustratedEndemic
Basionym: Sonchus pulchellus Pursh Fl. Amer. Sept. 2: 502. 1813
Synonyms: Lactuca pulchella (Pursh) de Candolle Lactuca tatarica subsp. pulchella (Pursh) Stebbins
Treatment appears in FNA Volume 19. Treatment on page 259.

Leaf-blades 3–12 (–18) cm × 5–25 (–35+) mm. Involucres 12–15+ mm. Cypselae: bodies 4–5+ mm, beaks 0–1 mm; pappi 7–9 (–12+) mm. 2n = 18.


Phenology: Flowering Jun–Sep.
Habitat: Calcareous sites, clearings in forests or shrublands, meadows, roadsides, stream banks, other wet sites
Elevation: 800–3200 m

Distribution

V19-346-distribution-map.gif

Alta., B.C., Man., N.W.T., Ont., Que., Sask., Alaska, Ariz., Calif., Colo., Idaho, Ill., Ind., Iowa, Kans., La., Maine, Mich., Minn., Mo., Mont., Nebr., Nev., N.Mex., N.Y., N.Dak., Ohio, Okla., Oreg., Pa., S.Dak., Tex., Utah, Wash., Wis., Wyo.

Discussion

The type of Mulgedium pulchellum may be conspecific with that of M. tataricum (Linnaeus) de Candolle, a Eurasian species. Or, if “perennial” plus “Fl. blue” constitutes sufficient description for valid publication of the name Lactuca oblongifolia Nuttall (1813), then a new combination in Mulgedium based on that name may be appropriate for what is here called M. pulchellum. Presence of Mulgedium pulchellum in Texas is based on a single, early collection.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Mulgedium pulchellum"
scarious +
ovate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
John L. Strother +
(Pursh) G. Don in R. Sweet +
decurrent +
Sonchus pulchellus +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
compound +  and simple +
ovate;lanceolate or linear +
tuberculate +, rugose +, muricate +  and smooth +
lanceoloid;compressed +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
deltate;lanceolate +
filiform +
barbellulate +  and nearly smooth +
zygomorphic +, actinomorphic +  and (3-)5-merous +
reddish-brown +  and brown-mottled or slatey +
tapered +, beaked +, flattened +, obcompressed +, compressed +, prismatic +, fusiform +, ellipsoid +, columnar +  and clavate +
Alta. +, B.C. +, Man. +, N.W.T. +, Ont. +, Que. +, Sask. +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, La. +, Maine +, Mich. +, Minn. +, Mo. +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Y. +, N.Dak. +, Ohio +, Okla. +, Oreg. +, Pa. +, S.Dak. +, Tex. +, Utah +, Wash. +, Wis. +  and Wyo. +
800–3200 m +
winged +  and beaked +
dispersed +
Calcareous sites, clearings in forests or shrublands, meadows, roadsides, stream banks, other wet sites +
in corymbiform to paniculiform arrays +  and singly +
indeterminate +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
12 cm120 mm <br />0.12 m <br /> (18 cm180 mm <br />0.18 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
dentate to pinnately lobed +  and entire +
divided +, lobed +  and dentate +
2-carpellate +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
persistent +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering Jun–Sep. +
connate +  and distinct +
8 +  and 13 +
in R. Sweet, Hort. Brit. ed. +
flat;convex +
4 +  and 6 +
exalbuminous +
Illustrated +  and Endemic +
glabrate +  and glabrous +
appendaged +  and truncate +
papillate +
Lactuca pulchella +  and Lactuca tatarica subsp. pulchella +
Mulgedium pulchellum +
Mulgedium +
species +
15 cm150 mm <br />0.15 m <br /> (100 cm1,000 mm <br />1 m <br />) +
shrub +  and subshrub +