Pityopsis falcata

(Pursh) Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 318. 1840.

Endemic
Basionym: Inula falcata Pursh Fl. Amer. Sept. 2: 532. 1813
Synonyms: Chrysopsis falcata (Pursh) Elliott Heterotheca falcata (Pursh) V. L. Harms Inula mariana var. ×falcata (Pursh) Nuttall
Treatment appears in FNA Volume 20. Treatment on page 223. Mentioned on page 224.

Perennials, (10–) 20–30 (–40) cm; rhizomes 0.5–5 cm. Stems erect, sometimes reddish-brown, sometimes branched distally, striate, sparsely to densely long-sericeous. Leaves: basal usually withering by flowering, shorter than cauline; cauline spreading to ascending, sessile, blades linear, falcate, often conduplicate, apices acuminate; proximal 50–90 × 2–7 mm, glabrate to sparsely sericeous; distal somewhat smaller, glabrate except for margins. Heads (2–) 4–10 (–25) in corymbiform arrays. Peduncles sparsely bracteolate, 1–4 cm, white-villous. Involucres turbino-campanulate, 5–8 mm. Phyllaries in 5–6 series, apices with tufts of hairs, faces sparsely strigose. Ray-florets 9–15; corolla laminae 5–8 mm. Disc-florets 30–60; corollas 4.5–6 mm, sparsely pilose near base of limbs, lobes 0.5 mm, sparsely pilose. Cypselae fusiform, 3–4 mm, ribbed, faces strigose; pappi: outer of linear-setiform scales 0.5–1 mm, inner of 30–40 bristles 4–6 mm. 2n = 18.


Phenology: Flowering summer–fall.
Habitat: Open areas on sandy glacial deposits, often in pine barrens (Pinus rigida)
Elevation: 10–100 m

Distribution

V20-493-distribution-map.gif

Conn., Fla., Mass., N.J., N.Y., R.I.

Discussion

Pityopsis falcata grows on deposits left along the front of the Wisconsin Glaciation. It can be locally abundant in open sandy soils. It was collected once along railroad tracks west of Toronto, Ontario, and also along a beach in St. Petersburg, Florida, in 1955.

Selected References

None.

Lower Taxa

None.

"[" is not declared as a valid unit of measurement for this property."]" is not declared as a valid unit of measurement for this property.

... more about "Pityopsis falcata"
not tailed +, rounded +  and obtuse +
distinct +
acuminate +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
John C. Semple +
(Pursh) Nuttall +
decurrent +
Inula falcata +
3-11-parallel-nerved +
falcate +
rugulose +  and muricate +
light tan +  and light rust +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
ampliate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
fertile +  and bisexual +
fertile +  and bisexual +
Conn. +, Fla. +, Mass. +, N.J. +, N.Y. +  and R.I. +
10–100 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open areas on sandy glacial deposits, often in pine barrens (Pinus rigida) +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
turbino-campanulate +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cauline +  and basal +
erect;spreading +
deltate +
2-carpellate +
persistent +
white-villous +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering summer–fall. +
lanceolate +
5 cm50 mm <br />0.05 m <br /> (9 cm90 mm <br />0.09 m <br />) +
glabrate;sparsely sericeous +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Trans. Amer. Philos. Soc., n. s. +
bearing subulate enations +, hairy +  and bristly +
0.5 cm5 mm <br />0.005 m <br /> (5 cm50 mm <br />0.05 m <br />) +
linear-setiform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
exalbuminous +
reddish-brown +
long-sericeous +
appendaged +  and truncate +
papillate +  and smooth +
Chrysopsis falcata +, Heterotheca falcata +  and Inula mariana var. ×falcata +
Pityopsis falcata +
Pityopsis +
species +
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tree +, shrub +  and subshrub +