Agnorhiza

(Jepson) W. A. Weber

Phytologia 85: 19. 1999.

Etymology: Possibly Greek agnostos, unknown, and rhiza, root, alluding to the initially unknown roots in protologue of basionym of type species, Greene stated, “Root unknown.”
Basionyms: Balsamorhiza sect. Agnorhiza Jepson Man. Fl. Pl. Calif., 1077. 1925
Treatment appears in FNA Volume 21. Treatment on page 104. Mentioned on page 65, 66, 100.

Perennials, 5–60 (–100) cm (taproots relatively massive; caudices sometimes branched). Stems erect and branched (mostly distally), or decumbent (and seldom branched distally). Leaves basal and cauline (basal usually scalelike on flowering-stems, well-formed on nonflowering shoots); alternate; petiolate; blades (3-or 5-nerved or pinnately nerved), cordate-ovate, deltate, deltate-triangular, ovate, ovatelanceolate, or suborbiculate, bases broadly cuneate, subcordate, or truncate, margins entire or dentate to crenate, faces glabrous or hairy (often glanddotted). Heads radiate or discoid, borne singly (terminal) or in ± racemiform arrays. Involucres campanulate to ± hemispheric, 12–40 mm diam. Phyllaries persistent, (8–) 12–26+ in 2–3+ series (subequal to unequal, outer usually surpassing inner). Receptacles flat to convex, paleate (paleae persistent, conduplicate, chartaceous). Ray-florets 0 or (1–) 5–21+, pistillate, fertile; corollas yellow. Disc-florets 50–150+, bisexual, fertile; corollas yellow, tubes shorter than cylindric throats, lobes 5, lance-deltate (style-branches stigmatic in 2, barely distinct lines, appendages filiform). Cypselae ± prismatic, 3–4-angled (faces glabrous or strigillose); pappi usually persistent, coroniform (± lacerate, sometimes with 1–4 teeth or scales), sometimes 0. x = 19.

Distribution

Calif., nw Mexico

Discussion

Species 5 (5 in the flora).

Key

1 Plants (5–)15–30(–45+) cm; stems decumbent, seldom distally branched; cauline leaves: blades ovate, suborbiculate, elliptic, rounded-deltate, or oblong; involucres ± campanulate, 12–25(–30+) mm diam > 2
1 Plants (20–)40–100 cm; stems erect, usually distally branched; cauline leaves: blades deltate, ovate, or ovate-lanceolate; involucres ± hemispheric, (15–)20–40 mm diam > 3
2 Leaves glabrous (shining, finely gland-dotted, glutinous); heads held among or beyond leaves; ray florets (7–)8–12, laminae (12–)20–30(–35) mm; cypselae 7–9 mm; pappi 0 or coroniform, 0.1–0.3 mm Agnorhiza bolanderi
2 Leaves silky-villous to strigillose, glabrescent; heads in axils of (and overtopped by) leaves; ray florets 5–8(–9), laminae 8–18 mm; cypselae 9–10 mm; pappi coroniform, 1–1.5+ mm Agnorhiza ovata
3 Ray florets 0 or 2–3 Agnorhiza invenusta
3 Ray florets 10–23 > 4
4 Leaf blades: faces tomentulose to pilosulous (and gland-dotted); cypselae 8–12 mm; pappi (0.5–)1–2(–3) mm Agnorhiza elata
4 Leaf blades: faces sparsely hispid or scabrous (and finely gland-dotted, green, shin-ing, often vernicose); cypselae ca. 6 mm; pappi 0.1–1 mm Agnorhiza reticulata

"broader" is not a number.

... more about "Agnorhiza"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
William A. Weber +
(Jepson) W. A. Weber +
bristlelike +
coroniform +
subcordate +  and cuneate +
Balsamorhiza sect. Agnorhiza +
compound +  and simple +
suborbiculate;ovatelanceolate;suborbiculate;ovatelanceolate;ovate;deltate-triangular;deltate;cordate-ovate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
hairy +  and glabrous +
3-4-angled +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and nw Mexico +
Possibly Greek agnostos, unknown, and rhiza, root, alluding to the initially unknown roots +  and in protologue of basionym of type species, Greene stated, “Root unknown.” +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
discoid +  and radiate +
in more or less racemiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1.2 cm12 mm <br />0.012 m <br /> (4 cm40 mm <br />0.04 m <br />) +
campanulate;more or less hemispheric +
cauline +  and basal +
lance-deltate +
dentate to crenate +  and entire +
2-carpellate +
persistent +
coroniform +
12 +  and 26 +
unequal +  and subequal +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
weber1946a +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Agnorhiza +
Asteraceae (tribe Heliantheae) subtribe Ecliptinae +
cylindric +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
60 cm600 mm <br />0.6 m <br /> (100 cm1,000 mm <br />1 m <br />) +
5 cm50 mm <br />0.05 m <br /> (60 cm600 mm <br />0.6 m <br />) +
shrub +  and subshrub +