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perkysue

verde four-nerve daisy

Habit Perennials, 6–25(–42+) cm. Perennials, 5–15+ cm.
Caudices

± branched, branches notably thickened distally.

± branched, branches notably thickened distally.

Stems

1–8(–12), erect, leafy, ± branched distally.

1–15, erect, unbranched.

Leaves

basal and cauline, entire, usually densely strigoso-canescent, ± gland-dotted;

basal leaves tightly clustered, blades spatulate to oblanceolate;

proximal cauline blades oblanceolate;

mid blades oblanceolate to linear-oblanceolate, 2.5–5 mm wide;

distal blades linear-lanceolate to linear.

all basal (new leaves tightly clustered);

blades obovate or oblanceolate to linear-oblanceolate, entire, densely hairy (not strigoso-canescent), ± gland-dotted.

Peduncles

2–13.5 cm, usually densely hairy.

4–15 cm, ± hairy.

Involucres

(5–)7–10 × 8–15 mm.

5–9 × 6–10 mm.

Ray florets

8–14;

corollas 11.8–17 mm.

0.

Disc florets

25–75(–100+);

corollas yellow proximally, yellow or rarely purplish distally, 2.8–3.8 mm.

20–40;

corollas yellow, 2.5–4 mm.

Outer phyllaries

8–11, 4–6.5 mm, margins 0–0.3 mm wide, usually scarious, abaxial faces densely hairy.

8–10, 4–5(–6) mm, margins 0–0.2 mm wide, sometimes slightly scarious, abaxial faces densely hairy.

Heads

1–10(–30) per plant (1–7 per stem), borne singly or in paniculiform to corymbiform arrays.

1–15 per plant, borne singly.

Cypselae

2.4–3.1 mm;

pappi of 5–6 obovate, aristate scales 2.1–3.5 mm.

2.8–4 mm;

pappi of 5–6 ovate to lanceolate or obovate to oblanceolate, aristate scales 2.5–3.5 mm.

2n

= 30, 60.

Tetraneuris argentea

Tetraneuris verdiensis

Phenology Flowering (Apr–)May–Aug(–Sep). Flowering May.
Habitat Roadsides, hillsides, open treeless areas, edges of woods Low gypsum hills
Elevation (1500–)2000–2400(–3000) m ((4900–)6600–7900(–9800) ft) ca. 1000 m (ca. 3300 ft)
Distribution
from FNA
AZ; NM
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ
[BONAP county map]
Discussion

Of conservation concern.

Tetraneuris verdiensis is found only at or near the type locality, east of Camp Verde, Yavapai County.

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

Source FNA vol. 21, p. 450. FNA vol. 21, p. 450.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Tetraneuris Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Tetraneuris
Sibling taxa
T. acaulis, T. herbacea, T. ivesiana, T. linearifolia, T. scaposa, T. torreyana, T. turneri, T. verdiensis
T. acaulis, T. argentea, T. herbacea, T. ivesiana, T. linearifolia, T. scaposa, T. torreyana, T. turneri
Synonyms Actinella argentea, Hymenoxys argentea, T. formosa, T. leptoclada, T. trinervata
Name authority (A. Gray) Greene: Pittonia 3: 269. (1898) R. A. Denham & B. L. Turner: Phytologia 81: 5, fig. 1. (1996)
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