Echinacea atrorubens

(Nuttall) Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 354. 1840.

Common names: Topeka purple coneflower
Endemic
Basionym: Rudbeckia atrorubens Nuttall J. Acad. Nat. Sci. Philadelphia 7: 80. 1834
Treatment appears in FNA Volume 21. Mentioned on page 89.

Plants to 90 cm (roots elongate-turbinate, ± branched). Herbage usually hairy (hairs appressed to ascending, spreading on adaxial leaf faces, to 1.2 mm), rarely glabrous. Stems light green to tan. Basal leaves: petioles 0–12 (–20) cm; blades (1-), 3-nerved, or 5-nerved, usually linear or lanceolate, rarely ovate, 5–30 × 0.5–3 cm, bases attenuate, margins usually entire. Peduncles 20–50 cm. Phyllaries linear to lanceolate, 6–15 × 1–3 mm. Receptacles: paleae 9–15 mm, tips red to orange-tipped, usually straight, sharp-pointed. Ray corollas purple, rarely pink or white, laminae reflexed, 19–35 × 2–7 mm, glabrous or sparsely hairy abaxially. Discs ovoid to conic, 25–35 × 20–40 mm. Disc corollas 4.5–5.5 mm, lobes greenish to pink or purple. Cypselae tan, 4–5 mm, faces finely tuberculate, glabrous; pappi to 1.2 mm (major teeth 3–4). 2n = 11.


Phenology: Flowering mostly late spring.
Habitat: Dry, limestone or sandstone outcrops, prairies
Elevation: 50–500 m

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Echinacea atrorubens"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
Lowell E. Urbatsch +, Kurt M. Neubig +  and Patricia B. Cox +
(Nuttall) Nuttall +
bristlelike +
coroniform +
attenuate +
Rudbeckia atrorubens +
5-nerved +  and 3-nerved +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
ovate;lanceolate;linear +
0.5cm;3cm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
Topeka purple coneflower +
yellow +, reddish purple +, greenish +, pinkish +, dark purple +  and pale-pink white or yellow +
hairy +  and glabrous +
4-angled +  and 3-angled +
fertile +  and bisexual +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
fertile +  and bisexual +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
ovoid;conic +
20mm;40mm +
Kans. +, Okla. +  and Tex. +
50–500 m +
tuberculate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry, limestone or sandstone outcrops, prairies +
indeterminate +
homogamous +  and heterogamous +
glabrous +  and hairy +
each +  and sessile +
1.2 cm12 mm <br />0.012 m <br /> (4 cm40 mm <br />0.04 m <br />) +
crateriform;hemispheric +
19mm;35mm +
hairy +  and glabrous +
cauline +  and basal +
greenish;pink or purple +
triangular +
2-carpellate +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
persistent +
coroniform +
0 cm0 mm <br />0 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0 cm0 mm <br />0 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Flowering mostly late spring. +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
15 +  and 50 +
unequal +  and subequal +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Trans. Amer. Philos. Soc., n. s. +
sterile +  and fertile +
white +, pink +  and purple +
bearing subulate enations +, hairy +  and bristly +
hemispheric;conic +
exalbuminous +
branched +  and unbranched +
light green +  and tan +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Echinacea atrorubens +
Echinacea +
species +
orange-tipped +
straight +
sharp-pointed +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
0 cm0 mm <br />0 m <br /> (140 cm1,400 mm <br />1.4 m <br />) +