The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links
Erigeron howellii

Howell's daisy, Howell's fleabane

wand fleabane, wand-like fleabane daisy

Habit Perennials, 20–50 cm; rhizomatous, fibrous-rooted, caudices simple, thick. Perennials, 5–25 cm; taprooted, caudexlike branches relatively thick, woody.
Stems

erect to basally ascending, proximally glabrous, distally sparsely to densely strigillose, eglandular.

ascending (without axillary tufts of leaves), glabrous, eglandular.

Leaves

basal (persistent) and cauline;

basal and proximal cauline blades spatulate, 50–200 × 15–45 mm, little reduced distally until distal to midstems, margins entire or shallowly serrate to denticulate, finely ciliate, faces glabrous, eglandular;

mid blades ovate to cordate (bases clasping to subclasping).

cauline (all commonly withering early in season);

proximal blades oblanceolate to narrowly oblanceolate, 20–50(–100) × 0.5–1(–15) mm, abruptly reduced distally, becoming linear to filiform, mid and distal shorter than internodes, margins entire, usually eciliate, sometimes sparsely ciliate, faces sparsely and minutely strigose or glabrous, eglandular.

Involucres

6–8 × 12–20 mm.

4–5(–6) × 7–12 mm.

Ray florets

30–50;

corollas white, 13–25 mm (mostly 1.5–3 mm wide), laminae coiling.

12–27(–45);

corollas white to lavender or blue, 6–9 mm, laminae slightly coiling at tips.

Disc corollas

4–5 mm.

3–4 mm (throats slightly indurate, not inflated).

Phyllaries

in 2–3(–4) series, glabrous, densely minutely glandular.

in (3–)4–5 series (inner with (1–)3 orange veins, margins of inner narrow, scarious), usually glabrous, outer sometimes sparsely strigulose, minutely glandular.

Heads

1.

1(–3).

Cypselae

2.5–3 mm, subterete, (4–)5(–6)-nerved, faces sparsely strigose;

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

ca. 2 mm, 2–4(–5)-nerved, faces sparsely strigose;

pappi: outer of setae, inner of 17–25 bristles.

2n

= 18.

Erigeron howellii

Erigeron oxyphyllus

Phenology Flowering May–Jul. Flowering (Feb–)May–Jun(–Nov).
Habitat Drainage of Columbia River, steep north-facing slopes with little soil, sometimes in seepage, commonly with Douglas fir Rocky hillsides around seeps or springs, canyons, cliff bases, among boulders, often with Acacia-Yucca-Coleogyne
Elevation (60–)500–1200(–1500) m ((200–)1600–3900(–4900) ft) 700–1100 m (2300–3600 ft)
Distribution
from FNA
OR; WA
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; Mexico (Sonora)
[BONAP county map]
Discussion

Of conservation concern.

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

Erigeron oxyphyllus is a member of sect. Pycnophyllum and is set apart from the rest of the section by its cauline leaves, sharply reduced in length distally, and by its more southeastern geographic range (versus the California-centered distribution of the rest of the section).

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

Source FNA vol. 20, p. 329. FNA vol. 20, p. 311.
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. 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. 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. 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. 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. salsuginosus var. howellii
Name authority (A. Gray) A. Gray: in A. Gray et al., Syn. Fl. N. Amer. 1(2): 209. (1884) Greene: Erythea 3: 20. (1895)
Web links