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spruce-fir fleabane

Lackschewitz fleabane, Lackschewitz's fleabane

Habit Perennials, 15–60 cm; rhizomatous, fibrous-rooted, caudices or primary rhizomes slender, simple or branched, usually producing slender, herbaceous, scale-leaved stolons bearing terminal leaf tufts. Perennials, 3.5–8 cm; taprooted, caudices simple or branched, relatively long, woody.
Stems

erect to ascending, usually glabrous, sometimes sparsely hirsuto-pilose proximal to heads, densely minutely glandular to nearly eglandular.

erect (scapiform), loosely white lanate-villous, sometimes sparsely minutely glandular.

Leaves

basal (persistent) and cauline;

basal blades spatulate to elliptic-spatulate (to oblanceolate-obovate), 30–150 × 9–35 mm;

cauline gradually reduced distally (bases usually clasping to subclasping), margins entire or serrulate to mucronulate with 3–5 pairs of teeth, faces glabrous, distal often glandular.

basal (persistent) and cauline (leaf bases broadened or not, not thickened and whitish-indurate);

basal blades linear-oblanceolate to narrowly oblanceolate, 20–60 × 1.2–3 mm;

cauline (on proximal 1/2 of stems) similar to basal or slightly reduced, margins entire (apices acute), adaxial faces loosely strigose to villous (or hairs mixed, appressed and spreading), abaxial glabrate, eglandular.

Involucres

7–9 × 11–19 mm.

6–8 × 12–17 mm.

Ray florets

40–80;

corollas white to bluish or lavender, 12–20 mm, laminae coiling.

30–68;

corollas purple to lavender, 8–11 mm, laminae coiling.

Disc corollas

(3.6–)4–5.8 mm.

3.5–4.3 mm.

Phyllaries

in 3–4 series (often purplish), usually glabrous, sometimes sparsely villous at bases, minutely glandular.

in 3 series, densely white-villous (hairs sometimes with blackish purple cross walls), densely minutely glandular.

Heads

1–5(–15).

1.

Cypselae

1.8–2.5 mm, 2(–4)-nerved, faces sparsely strigose;

pappi: outer of setae, inner of 20–30 bristles.

2.3–2.8 mm, 2-nerved, faces strigose;

pappi: outer of setae and scales, inner of 15–24 bristles.

2n

= 18, 36.

Erigeron eximius

Erigeron lackschewitzii

Phenology Flowering Jul–Oct. Flowering Jul–Aug.
Habitat Margins or openings, pine, aspen, spruce-fir, subalpine meadows Rocky slopes and ridges, terraces, talus, dry meadows, usually calcareous
Elevation 2300–3500 m (7500–11500 ft) 2200–2500 m (7200–8200 ft)
Distribution
from FNA
AZ; CO; NM; TX; UT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
MT; AB
[BONAP county map]
Discussion

Erigeron eximius apparently sometimes forms intermediates with E. formosissimus.

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

Erigeron lackschewitzii is closely similar to E. ochroleucus and perhaps derived from it.

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

Source FNA vol. 20, p. 333. FNA vol. 20, p. 295.
Parent taxa Asteraceae > tribe Astereae > Erigeron Asteraceae > tribe Astereae > Erigeron
Sibling taxa
E. abajoensis, E. acomanus, E. acris, E. aequifolius, E. algidus, E. aliceae, E. allocotus, E. alpiniformis, E. anchana, E. annuus, E. aphanactis, E. arenarioides, E. argentatus, E. arisolius, E. arizonicus, E. asperugineus, E. aureus, E. barbellulatus, E. basalticus, E. bellidiastrum, E. bigelovii, E. biolettii, E. blochmaniae, E. bloomeri, E. breweri, E. caespitosus, E. calvus, E. canaani, E. canus, E. cascadensis, E. cavernensis, E. cervinus, E. chrysopsidis, E. clokeyi, E. compactus, E. compositus, E. concinnus, E. consimilis, E. corymbosus, E. coulteri, E. cronquistii, E. davisii, E. decumbens, E. denalii, E. disparipilus, E. divergens, E. eatonii, E. elatior, E. elatus, E. elegantulus, E. elmeri, E. engelmannii, E. evermannii, E. filifolius, E. flabellifolius, E. flagellaris, E. flettii, E. foliosus, E. formosissimus, E. garrettii, E. geiseri, E. glabellus, E. glacialis, E. glaucus, E. goodrichii, E. gracilis, E. grandiflorus, E. greenei, E. heliographis, E. hessii, E. howellii, E. humilis, E. hyperboreus, E. hyssopifolius, E. inornatus, E. jonesii, E. kachinensis, E. karvinskianus, E. klamathensis, E. kuschei, E. lackschewitzii, E. lanatus, E. lassenianus, E. latus, E. leibergii, E. leiomerus, E. lemmonii, E. linearis, E. lobatus, E. lonchophyllus, E. maguirei, E. mancus, E. maniopotamicus, E. mariposanus, E. melanocephalus, E. miser, E. modestus, E. muirii, E. multiceps, E. nanus, E. nauseosus, E. nematophyllus, E. neomexicanus, E. nivalis, E. ochroleucus, E. oreganus, E. oreophilus, E. ovinus, E. oxyphyllus, E. pallens, E. parishii, E. parryi, E. peregrinus, E. petrophilus, E. philadelphicus, E. pinnatisectus, E. piperianus, E. piscaticus, E. poliospermus, E. porsildii, E. pringlei, E. procumbens, E. pulchellus, E. pulcherrimus, E. pumilus, E. purpuratus, E. pygmaeus, E. quercifolius, E. radicatus, E. reductus, E. religiosus, E. rhizomatus, E. robustior, E. rybius, E. rydbergii, E. salishii, E. salmonensis, E. sanctarum, E. saxatilis, E. sceptrifer, E. scopulinus, E. serpentinus, E. sionis, E. sivinskii, E. sparsifolius, E. speciosus, E. strigosus, E. subglaber, E. subtrinervis, E. supplex, E. tenellus, E. tener, E. tenuis, E. tracyi, E. trifidus, E. tweedyi, E. uintahensis, E. uncialis, E. uniflorus, E. untermannii, E. ursinus, E. utahensis, E. vagus, E. velutipes, E. vernus, E. versicolor, E. vetensis, E. vicinus, E. vreelandii, E. watsonii, E. wilkenii, E. yukonensis
E. abajoensis, E. acomanus, E. acris, E. aequifolius, E. algidus, E. aliceae, E. allocotus, E. alpiniformis, E. anchana, E. annuus, E. aphanactis, E. arenarioides, E. argentatus, E. arisolius, E. arizonicus, E. asperugineus, E. aureus, E. barbellulatus, E. basalticus, E. bellidiastrum, E. bigelovii, E. biolettii, E. blochmaniae, E. bloomeri, E. breweri, E. caespitosus, E. calvus, E. canaani, E. canus, E. cascadensis, E. cavernensis, E. cervinus, E. chrysopsidis, E. clokeyi, E. compactus, E. compositus, E. concinnus, E. consimilis, E. corymbosus, E. coulteri, E. cronquistii, E. davisii, E. decumbens, E. denalii, E. disparipilus, E. divergens, E. eatonii, E. elatior, E. elatus, E. elegantulus, E. elmeri, E. engelmannii, E. evermannii, E. eximius, E. filifolius, E. flabellifolius, E. flagellaris, E. flettii, E. foliosus, E. formosissimus, E. garrettii, E. geiseri, E. glabellus, E. glacialis, E. glaucus, E. goodrichii, E. gracilis, E. grandiflorus, E. greenei, E. heliographis, E. hessii, E. howellii, E. humilis, E. hyperboreus, E. hyssopifolius, E. inornatus, E. jonesii, E. kachinensis, E. karvinskianus, E. klamathensis, E. kuschei, E. lanatus, E. lassenianus, E. latus, E. leibergii, E. leiomerus, E. lemmonii, E. linearis, E. lobatus, E. lonchophyllus, E. maguirei, E. mancus, E. maniopotamicus, E. mariposanus, E. melanocephalus, E. miser, E. modestus, E. muirii, E. multiceps, E. nanus, E. nauseosus, E. nematophyllus, E. neomexicanus, E. nivalis, E. ochroleucus, E. oreganus, E. oreophilus, E. ovinus, E. oxyphyllus, E. pallens, E. parishii, E. parryi, E. peregrinus, E. petrophilus, E. philadelphicus, E. pinnatisectus, E. piperianus, E. piscaticus, E. poliospermus, E. porsildii, E. pringlei, E. procumbens, E. pulchellus, E. pulcherrimus, E. pumilus, E. purpuratus, E. pygmaeus, E. quercifolius, E. radicatus, E. reductus, E. religiosus, E. rhizomatus, E. robustior, E. rybius, E. rydbergii, E. salishii, E. salmonensis, E. sanctarum, E. saxatilis, E. sceptrifer, E. scopulinus, E. serpentinus, E. sionis, E. sivinskii, E. sparsifolius, E. speciosus, E. strigosus, E. subglaber, E. subtrinervis, E. supplex, E. tenellus, E. tener, E. tenuis, E. tracyi, E. trifidus, E. tweedyi, E. uintahensis, E. uncialis, E. uniflorus, E. untermannii, E. ursinus, E. utahensis, E. vagus, E. velutipes, E. vernus, E. versicolor, E. vetensis, E. vicinus, E. vreelandii, E. watsonii, E. wilkenii, E. yukonensis
Synonyms E. superbus
Name authority Greene: Pittonia 3: 295. (1898) G. L. Nesom & W. A. Weber: Madroño 30: 245, fig. 1. (1983)
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