Chrysopsis delaneyi |
Chrysopsis subulata |
|
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Delaney's goldenaster |
scrubland goldenaster |
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Habit | Biennials, 20–70 cm; taprooted (frequently perennating by rosettes produced at bases of old stems and at ends of short lateral rhizomes and roots). | |
Stems | (1–)3–8(–25), usually ascending or erect, sometimes decumbent (especially on bare sandhill slopes or dunes), frequently branched, densely stipitate-glandular (glands to 0.5 mm) (tips usually nodding before heads form). |
1–5+, erect (sometimes purple-tinged), often much branched proximally, glabrous to sparsely pilose, eglandular. |
Leaves | proximal (1/3 to 1/2 of stems) withering, turning brown to blackish before flowering and persisting; basal blades broadly spatulate, oblanceolate, or narrowly lanceolate to nearly linear, 100–180 × (8–)15–27(–35) mm, bases narrowly attenuate-cuneate, margins distally serrate-denticulate, coarsely toothed or serrate-denticulate and/or distally shallowly to conspicuously lobed, faces densely woolly and/or densely long-stipitate-glandular; cauline sessile, blades linear-oblanceolate to linear- or elliptic-oblong, (30–)45–110 × (7–)12–16(–26) mm, bases slightly auriculate to moderately auriculate-clasping, truncate, margins usually entire, sometimes distally coarsely toothed or serrate-denticulate, apices acute, mucronate to mucronulate, faces moderately hirsute (hairs 0.6–1.5 mm), densely long-stipitate-glandular (larger glandular hairs 0.3–0.9 mm). |
basal blades oblanceolate to linear-oblanceolate, (first season leaves) 50–100 × 4–10 mm, faces densely woolly; cauline blades linear-lanceolate to linear, reduced distally, bases tapering to rounded, margins entire, long-piloso-ciliate, often undulate, apices acute, often twisted, faces sparsely pilose. |
Peduncles | 0.5–11 cm, stipitate-glandular (glands 0.3–0.9 mm); bracteoles 1–10, linear lanceoate to linear, stipitate-glandular. |
1–10 cm (thin), glabrous or glabrate; bracteoles linear-lanceolate (margins ciliate), glabrous or sparsely pilose, sometimes sparsely stipitate-glandular. |
Involucres | campanulate to turbinate, 9–10 mm. |
campanulate, 8–10 mm. |
Ray florets | 18–28; laminae (9–)13–17(–19) × 2–3 mm. |
10–28; laminae 5–8(–10) × 1.5–2 mm. |
Disc florets | 35–50; corollas 5.5 mm, lobes 0.6–1 mm. |
30–45; corollas 5–6 mm, lobes ca. 0.5 mm. |
Phyllaries | 3–5 series, erect, linear-lanceolate, 0.7–1 mm wide, strongly unequal, apices usually acute, acuminate, sometimes aristate, inner sometimes obtuse to rounded, faces densely stipitate-glandular. |
in 4–5 series, linear, 0.6–0.9 mm wide, unequal, apices long-attenuate, rarely acute (some n Florida collections), tips spreading to reflexed, twisted, faces proximally glabrous or sparsely stipitate-glandular. |
Heads | 30–70(–200) (usually nodding in bud) in proximally leafy, compact to moderately open, corymbiform to paniculiform arrays (height usually less than 1/4 plant, branches stout, densely stipitate-glandular). |
10–70 in lax corymbiform arrays. |
Cypselae | 2.5–3.5 mm, without ridges, shallowly ribbed or smooth, faces sparsely long-strigose; pappi in 2–3 series, outer of linear scales 0.2–1 mm, inner of ca. 35 ± moderately clavate bristles 4.5–6 mm. |
1.5–2 mm, 6–10-ridged (ridges yellow to dark red-brown, translucent, clavate), weakly ribbed, faces glabrate to sparsely strigose proximally; pappi in 3 series, outer of linear to linear-triangular scales 0.4–1 mm, inner of 20–25 bristles 6–7 mm, inner moderately clavate. |
Weak | perennials (sometimes monocarpic, somewhat suffrutescent), 60–150 cm, odor slightly acrid; taproots stout, short (rosettes often atop stems to 15 cm, frequently branched, apparently often requiring several seasons before bolting, initial rosette rarely bolting). |
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2n | = 10. |
= 10. |
Chrysopsis delaneyi |
Chrysopsis subulata |
|
Phenology | Flowering mid Nov–early Jan. | Flowering (May–)Jul–Aug(–Sep). |
Habitat | Turkey oak, longleaf pine sandhills, sand pine scrub, hickory scrub | Sandy open grounds, pine and oak scrub |
Elevation | 10–60 m (0–200 ft) | 10–50 m (0–200 ft) |
Distribution |
FL |
FL |
Discussion | Of conservation concern. Chrysopsis delaneyi is found on the Lake Wales Ridge and on the southern Atlantic Coastal Ridge of the peninsula. The latter populations generally have smaller stipitate glands than those on the Lake Wales Ridge. Orange County plants approach C. scabrella in floral traits, but the leaves have glands larger than 0.3 mm. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Chrysopsis subulata is found on the central to northern peninsula. Early blooming plants may have a second blooming flush in October to December with flowering heads on otherwise brown and dried stems or from short new shoots developing from lower nodes. Plants of Chrysopsis subulata from Alachua County have acute phyllaries rather than long-attenuate and reflexed, but the leaves have long-pilose margins typical of the species. The number of ridges on the cypselae varies from a few red-brown as in C. linearifolia subsp. dressii to covering nearly the entire body. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 217. | FNA vol. 20. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Heterotheca hyssopifolia var. subulata | |
Name authority | Wunderlin & Semple: Bot. Explor. 3: 2. (2003) | Small: Man. S.E. Fl., 1338, 1508. (1933) |
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