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common hillside daisy, common monolopia

hillside daisy, monolopia

Habit Dioecious.
Plants

3–14 cm (bases woody).

Stolons

none.

Leaves

oblanceolate to lance-linear.

Basal leaves

absent at flowering.

Cauline leaves

linear-lanceolate to cuneate-oblanceolate, 11–35 × 2–6 mm, acute, not flagged (apices acute), faces gray-pubescent.

Peduncles

10–130 mm.

Involucres

6–10 mm.

staminate 6–8 mm; pistillate 6–8 mm.

Ray florets

± 8;

corollas yellow, laminae 10–20 mm, ± equally 3-lobed.

Disc florets

60–100.

Corollas

staminate 3–4.5 mm; pistillate 5–6 mm.

Phyllaries

± 8, usually distinct, sometimes connate to 1/2 their lengths, elliptic to oblanceolate, apices acuminate.

distally red to pink, light brown, or white.

Heads

3–25 in corymbiform to paniculiform arrays.

Cypselae

obcompressed, 2–4 mm, 3-angled (ray), 4-angled (disc), uniformly gray-strigose.

2–2.5 mm, pubescent and papillate;

pappi: staminate 6–7 mm (capillary); pistillate 6–7 mm.

2n

= 20.

= 28.

Monolopia lanceolata

Monolopia

Phenology Flowering Feb–Jun.
Habitat Clayey areas in grasslands or openings in chaparral or oak or foothill woodlands
Elevation 50–1600 m (200–5200 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Species 5 (5 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Ray lamina apices entire or obscurely to slightly lobed (mid lobes shorter than outers); disc cypselae ± prismatic (not obcompressed)
→ 2
1. Ray lamina apices usually ± equally 3-lobed (laminae sometimes inconspicuous); disc cypselae obcompressed
→ 3
2. Cypselae ca. 2 mm, glabrous or sparsely hairy (branches spreading, usually distal)
M. gracilens
2. Cypselae 2.5–3 mm, uniformly gray-strigose (branches erect)
M. stricta
3. Ray laminae ca. 0.5 mm (inconspicuous); disc cypselae 2-angled (pappi of 2–7 scales)
M. congdonii
3. Ray laminae 8–20 mm; disc cypselae 4-angled (pappi 0)
→ 4
4. Phyllaries distinct or connate (± 1/2 their lengths); cypselae uniformly gray-strigose
M. lanceolata
4. Phyllaries connate (± 3/4 their lengths, forming cups with distinct triangular lobes); cypselae glabrous or apically hairy
M. major
Source FNA vol. 21, p. 350. FNA vol. 21, p. 349. Author: Dale E. Johnson.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Baeriinae > Monolopia Asteraceae > tribe Heliantheae > subtribe Baeriinae
Sibling taxa
M. congdonii, M. gracilens, M. major, M. stricta
Subordinate taxa
M. congdonii, M. gracilens, M. lanceolata, M. major, M. stricta
Name authority Nuttall: Proc. Acad. Nat. Sci. Philadelphia 4: 21. (1848) de Candolle: in A. P. de Candolle and A. L. L. P. de Candolle, Prodr. 6: 74. (1838)
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