Yellow Hawkweed Flower Yellow Hawkweed Leaves Yellow Hawkweed Stem Oracle Ridge Trail 5/21/16 Yellow Hawkweed Flower Oracle Ridge Trail 5/21/16 Yellow Hawkweed Leaves Oracle Ridge Trail 5/21/16 Yellow Hawkweed Leaves Oracle Ridge Trail 5/21/16 Yellow Hawkweed Leaves Oracle Ridge Trail 5/21/16 Yellow Hawkweed Stem


Wildflowers of Southern Arizona


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Yellow (Fendler's) Hawkweed.
Hieracium fendleri.
Aster (Asteraceae) family.

Plants 8-30(-40+) cm (herbage often glaucous). Stems proximally piloso-hirsute (hairs 2-5+ mm), distally usually ± piloso-hirsute (hairs 1-3+ mm) and stellate-pubescent, sometimes stipitate-glandular as well. Leaves: basal 3-8+, cauline 0-1(-3); blades elliptic or oval to oblanceolate to lanceolate, 20-70 × 12-25(-40) mm, lengths 1.5-6+ times widths, bases cuneate, margins entire or denticulate, apices rounded to acute, faces piloso-hirsute (hairs 1-3+ mm). Heads 2-5+ in ± corymbiform arrays. Peduncles usually stellate-pubescent, sometimes piloso-hirsute and/or stipitate-glandular as well. Calyculi: bractlets 5-8+. Involucres cylindric to campanulate, (10-)12-15+ mm. Phyllaries 13-16+, apices ± acuminate, abaxial faces usually piloso-hirsute and stellate-pubescent, sometimes stipitate-glandular as well. Florets 15-30+; corollas pale yellow to ochroleucous, 7-13+ mm. Cypselae urceolate, 5-7 mm; pappi of 50-60+, ± stramineous bristles in 2+ series, 5-8+ mm. Flowering (May-)Jun-Aug(-Sep). Pine woods, near springs; 1400-2900 m.

Santa Catalina Mountains
Location: Box Camp Trail.
6/23/16

Notes: Oracle Ridge Trail 5/21/16

See SEINet Pictures and Description

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