Hieracium argutum

Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 447. 1841.

Endemic
Synonyms: Hieracium argutum var. parishii (A. Gray) Jepson
Treatment appears in FNA Volume 19. Treatment on page 293. Mentioned on page 281, 282, 283.
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Plants 30–60 cm. Stems proximally usually glabrous, sometimes piloso-hirsute (hairs 1–5+ mm) and stellate-pubescent, distally glabrous or stellate-pubescent. Leaves: basal 0–7 (–12+), cauline (1–) 3–8+; blades oblanceolate or spatulate to lance-linear, 60–120 (–200) × 8–15 (–45+) mm, lengths 5–10 (–15+) times widths, bases cuneate, margins of some or all sinuately toothed, apices acute, faces piloso-hirsute (hairs 1–5+ mm) and stellate-pubescent. Heads 12–25 (–40+) in paniculiform arrays. Peduncles usually stellate-pubescent, sometimes stipitate-glandular as well. Calyculi: bractlets 8–12+. Involucres ± campanulate to obconic, 7–9+ (× 5–6) mm. Phyllaries 13–21+, apices acute, abaxial faces usually stellate-pubescent and stipitate-glandular, sometimes piloso-hirsute as well (hairs 0.5–1+ mm), rarely glabrous. Florets 15–30+; corollas yellow, 8–10 mm. Cypselae (black) columnar, 2.5–3 mm; pappi of 40–60+, white bristles in ± 2 series, 3.5–5 mm.


Phenology: Flowering Jun–Aug(–Oct).
Habitat: Pine and pine-oak forests
Elevation: 300–1000(–3000) m

Discussion

Selected References

None.

Lower Taxa

None.

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

... more about "Hieracium argutum"
glabrous +, piloso-hirsute +, stipitate-glandular +  and stellate-pubescent +
acute;toothed +
scarious +
ovate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
John L. Strother +
Nuttall +
cuneate +
compound +  and simple +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
5-10(-15+) +
6 cm60 mm <br />0.06 m <br /> (12 cm120 mm <br />0.12 m <br />) +
spatulate;lance-linear +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
tuberculate +, rugose +, muricate +  and smooth +
deltate;lanceolate or linear +
filiform +
3 (?) +  and 8 (?) +
zygomorphic +, actinomorphic +  and (3-)5-merous +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
black +  and redbrown +
300–1000(–3000) m +
stellate-pubescent +  and piloso-hirsute +
winged +  and beaked +
dispersed +
Pine and pine-oak forests +
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 />) +
less campanulate;obconic +
sessile +  and petiolate +
cauline +  and basal +
2-carpellate +
persistent +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
stipitate-glandular +  and stellate-pubescent +
not inflated +
Flowering Jun–Aug(–Oct). +
connate +  and distinct +
13 +  and 21 +
subequal +  and unequal +
Trans. Amer. Philos. Soc., n. s. +
flat;convex +
exalbuminous +
stellate-pubescent +, glabrous +  and piloso-hirsute +
scapiform +
appendaged +  and truncate +
papillate +
Hieracium argutum var. parishii +
Hieracium argutum +
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 />) +