Hieracium robinsonii

(Zahn) Fernald

Rhodora 45: 317. 1943.

Endemic
Basionym: Hieracium smolandicum subsp. robinsonii Zahn in H. G. A. Engler, Pflanzenr. 76[IV,280]: 468. 1921
Treatment appears in FNA Volume 19. Treatment on page 291. Mentioned on page 281, 282.

Plants 10–35+ cm. Stems proximally piloso-hirsute (hairs 1–3+ mm) and stellate-pubescent, distally piloso-hirsute (hairs 0.5–1+ mm) and stellate-pubescent. Leaves: basal 2–4, cauline (2–) 4–10; blades (often purple-mottled) oblong to lanceolate, 20–80 × 7–20+ mm, lengths 3–4 times widths, bases cuneate, margins usually dentate, sometimes entire, apices acute to acuminate, abaxial faces glabrous or piloso-hirsute (especially midribs), adaxial glabrous or stellate-pubescent. Heads 1–5 (–10) in ± corymbiform arrays. Peduncles piloso-hirsute and stellate-pubescent (not, or rarely, stipitate-glandular). Calyculi: bractlets 10–16. Involucres campanulate to obconic, 10–15 mm. Phyllaries 25–35, apices acuminate, abaxial faces stellate-pubescent and stipitate-glandular. Florets 30–50+; corollas yellow (lengths unknown). Cypselae columnar, 3–5 mm; pappi of ca. 30, stramineous bristles in ± 2 series, ca. 6 mm.


Phenology: Flowering Jul–Aug.
Habitat: Stream banks and lake shores, sands and clays, rock crevices
Elevation: 10–300+ m

Distribution

V19-414-distribution-map.gif

N.B., Nfld. and Labr. (Nfld.), N.S., Que., Maine, N.H.

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Hieracium robinsonii"
stipitate-glandular +, stellate-pubescent +, piloso-hirsute +  and glabrous +
stellate-pubescent +  and glabrous +
acuminate;acute;acuminate +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
John L. Strother +
(Zahn) Fernald +
cuneate +
Hieracium smolandicum subsp. robinsonii +
compound +  and simple +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
oblong;lanceolate +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
tuberculate +, rugose +, muricate +  and smooth +
deltate;lanceolate or linear +
filiform +
4 (?) +  and 10 (?) +
zygomorphic +, actinomorphic +  and (3-)5-merous +
black +  and redbrown +
N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Que. +, Maine +  and N.H. +
10–300+ m +
winged +  and beaked +
dispersed +
Stream banks and lake shores, sands and clays, rock crevices +
in corymbiform , paniculiform , thyrsiform , umbelliform or nearly racemiform , arrays +  and singly +
indeterminate +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
campanulate;obconic +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
entire +  and dentate +
dentate +, denticulate +  and entire +
2-carpellate +
persistent +
6 cm60 mm <br />0.06 m <br /> (?) +
stellate-pubescent +  and piloso-hirsute +
not inflated +
Flowering Jul–Aug. +
connate +  and distinct +
25 +  and 35 +
subequal +  and unequal +
flat;convex +
exalbuminous +
stellate-pubescent +  and piloso-hirsute +
scapiform +
appendaged +  and truncate +
papillate +
Pilosella +
Hieracium robinsonii +
Hieracium +
species +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
20 cm200 mm <br />0.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +