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.

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 +
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 +
8mm;15mm +
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 +
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 />) +