Doellingeria umbellata

(Miller) Nees

Gen. Sp. Aster., 178. 1832.

Common names: Tall flat-topped white aster parasol whitetop aster à ombelle
IllustratedEndemic
Basionym: Aster umbellatus Miller Gard. Dict. ed. 8, Aster no. 22. 1768
Synonyms: Diplopappus umbellatus (Miller) Hooker Diplostephium umbellatum (Miller) Cassini
Treatment appears in FNA Volume 20. Treatment on page 44. Mentioned on page 78.

Plants 50–200 cm (short to long-rhizomatous, sometime colonial). Stems 1–10 (–20), ascending to erect, striate, glabrous or sparsely hairy. Cauline leaves: mid and distal crowded, blades broadly to narrowly elliptic, (35–) 60–110 (–150) × (5–) 13–25 (–35) mm, ± reduced distally, not stiff, bases attenuate, margins entire, involute, finely ciliate, apices acuminate, faces glabrous or sparsely hairy, especially along veins abaxially, or densely hairy. Heads (3–) 20–100 (–300+). Peduncles 1–10 mm, moderately to densely canescent; bracts linear-lanceolate to elliptic. Involucres 3–5 mm. Phyllaries in 3–4 series, triangular-lanceolate, midveins not swollen, apices finely subulate, strigose. Rays (2–) 5–10 (–16); laminae (4–) 7–10 (–12.3) × (0.8–) 1.2–1.8 (–2.7) mm. Disc-florets (5–) 11–26 (–50); corollas 3.5–6 mm, lobes 2–3.2 mm, 60–75% of limb. Cypselae 1.4–3.2 mm, 4–6-ribbed, sparsely to densely strigose; pappi: outer 0.2–0.8 mm, inner 3.5–6.2 mm. 2n = 18.

Distribution

V20-57-distribution-map.gif

Alta., Man., N.B., N.S., Nfld. and Labr. (Nfld.), Ont., P.E.I., Que., Sask., Ala., Conn., Del., Ga., Ill., Ind., Iowa, Ky., Maine, Mass., Md., Mich., Minn., N.C., N.Dak., N.H., N.J., N.Y., Nebr., Ohio, Pa., R.I., S.C., Tenn., Va., Vt., W.Va., Wis.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Leaves: abaxial faces sparsely piloso-villous (fewer than 10 hairs/mm 2); Newfoundland to Minnesota, s to n Alabama and Georgia Doellingeria umbellata var. umbellata
1 Leaves: abaxial faces densely puberulent (more than 12 hairs/mm 2); n Ontario, s Manitoba (disjunct to Alberta) s to Nebraska, Iowa, Illinois Doellingeria umbellata var. pubens

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

... more about "Doellingeria umbellata"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
flat-topped +
John C. Semple +  and Jerry G. Chmielewski +
(Miller) Nees +
attenuate +
Aster umbellatus +
compound +  and simple +
11 cm110 mm <br />0.11 m <br /> (15 cm150 mm <br />0.15 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
6 cm60 mm <br />0.06 m <br /> (11 cm110 mm <br />0.11 m <br />) +
reduced +
13mm;25mm +
rugulose +  and muricate +
linear-lanceolate +  and elliptic +
white +  and tan +
Tall flat-topped white aster +, parasol whitetop +  and aster à ombelle +
not 2-lipped +  and actinomorphic +
pale-yellow +  and white +
ampliate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
compressed +, terete +  and narrowly obconic +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, Man. +, N.B. +, N.S. +, Nfld. and Labr. (Nfld.) +, Ont. +, P.E.I. +, Que. +, Sask. +, Ala. +, Conn. +, Del. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, Maine +, Mass. +, Md. +, Mich. +, Minn. +, N.C. +, N.Dak. +, N.H. +, N.J. +, N.Y. +, Nebr. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Va. +, Vt. +, W.Va. +  and Wis. +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
cylindro-campanulate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.23 cm12.3 mm <br />0.0123 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
1.2mm;1.8mm +
cauline +  and basal +
spreading;reflexed +
deltate +
not swollen +
2-carpellate +
persistent +
inner +  and outer +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
triangular-lanceolate +
Gen. Sp. Aster., +
bearing subulate enations +, hairy +  and bristly +
linear +  and subulate +
exalbuminous +
Illustrated +  and Endemic +
eglandular +  and simple +
ascending +  and erect +
1 +  and 10 +
appendaged +  and truncate +
papillate +  and smooth +
Diplopappus umbellatus +  and Diplostephium umbellatum +
Doellingeria umbellata +
Doellingeria +
species +
40 cm400 mm <br />0.4 m <br /> (200 cm2,000 mm <br />2 m <br />) +
dark green +