Hymenoxys ambigens var. ambigens

Treatment appears in FNA Volume 21. Treatment on page 439. Mentioned on page 438.

Plants 30–150 cm. Heads (50–) 100–400+. Phyllaries: outer 4, basally connate 1/2–2/3 their lengths, 4–5 mm, apices obtuse to acute; inner 4, 3.2–4.5 mm, apices acuminate to mucronate. Ray-florets 4; corollas 4–5.5 × 2.3–4 mm. Disc-florets 7–11. Cypselae 2.5–3 mm, hairs straight to slightly wavy; pappi usually of 3–6 scales 1.2–2.5 mm, sometimes 0 on disc-florets. 2n = 30.


Phenology: Flowering Jun–Nov.
Habitat: Oak-juniper woodlands
Elevation: 1300–2200 m

Discussion

Of conservation concern.

Variety ambigens is known from the Mescal, Pinaleno, and Santa Teresa mountains.

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
connate +  and distinct +
acuminate;mucronate +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
Mark W. Bierner +
(S. F. Blake) Bierner +
decurrent +
Plummera ambigens +
hairy +  and glabrous +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
hairy +  and glabrous +
fertile +  and bisexual +
fertile +  and bisexual +
1300–2200 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Oak-juniper woodlands +
straight +
discoid +  and radiate +
in paniculiform to corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
campanulate;narrowly campanulate +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
obovate +  and oblanceolate +
unequal +  and subequal +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2-carpellate +
persistent +
hairy +  and glabrous +
0.4 cm4 mm <br />0.004 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Jun–Nov. +
28 +  and 50 +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
conic;ovoid;conic;ovoid;hemispheric +
3 +  and 6 +
lanceolate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
exalbuminous +
subequal;unequal +
Endemic +  and Conservation concern +
purple-red-tinted +
hairy +  and glabrous +
1 +  and 3 +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Dugaldia +  and Plummera +
Hymenoxys ambigens var. ambigens +
Hymenoxys ambigens +
variety +
urceolate +  and campanulate +
dilated +
toothed +  and entire +
3 (?) +  and 5 (?) +
obovate +  and oblanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +