Antennaria howellii

{{Short description|Species of flowering plant}}

{{Speciesbox

| image = Antennaria howellii subsp. canadensis.jpg

| image_caption = Canadian pussytoes
A. howellii subsp. canadensis

| status = {{TNCStatus}}

| status_system = TNC

| genus = Antennaria

| species = howellii

| authority = Greene

| synonyms_ref = {{Cite web|url=http://www.theplantlist.org/tpl1.1/search?q=Antennaria+howellii|title=Search results — The Plant List|website=www.theplantlist.org}}

| synonyms =

{{collapsible list|bullets = true

|title=Synonymy

|Antennaria callilepis Greene

|Antennaria eximia Greene

|Antennaria canadensis Greene, syn of subsp. canadensis

|Antennaria isabellina (Greene) Greene ex House, syn of subsp. canadensis

|Antennaria randii Fernald, syn of subsp. canadensis

|Antennaria spathulata (Fernald) Fernald, syn of subsp. canadensis

|Antennaria neodioica Greene, syn of subsp. neodioica

|Antennaria obovata E.E.Nelson, syn of subsp. neodioica

|Antennaria rhodantha Fernald, syn of subsp. neodioica

|Antennaria rupicola Fernald, syn of subsp. neodioica

|Antennaria russellii Boivin, syn of subsp. neodioica

|Antennaria grandis (Fernald) House, syn of subsp. neodioica

|Antennaria appendiculata Fernald, syn of subsp. petaloidea

|Antennaria concolor Piper, syn of subsp. petaloidea

|Antennaria pedicellata Greene, syn of subsp. petaloidea

|Antennaria petaloidea (Fernald) Fernald, syn of subsp. petaloidea

|Antennaria stenolepis Greene, syn of subsp. petaloidea

}}}}

Antennaria howellii, the everlasting or Howell's pussytoes,{{Cite web|url=https://www.calflora.org/app/taxon?crn=9015|title=Antennaria howellii Calflora|website=www.calflora.org}} is a North American species of plant in the family Asteraceae. It is native to northern Alaska, much of Canada including the Arctic territories, and the northern United States as far south as northern California, Colorado and North Carolina.{{Cite web|url=http://bonap.net/MapGallery/State/Antennaria%20howellii.png|title=Biota of North America Program 2014 state-level distribution map}}

Antennaria howellii is an evergreen perennial plant. The form is usually basal rosettes, largely clonally propagated. The basal rosette leaves are 2–4 cm long and 6–12 mm broad, light green and spatulate, with a thin arm and a broad tip with a point. They have woolly white undersides. The flowerheads appear in May, on a stem 15–35 cm tall with smaller, slender leaves 1–4 cm long. It is commonly seen growing under pine stands.{{Cite web|url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066076|title=Antennaria howellii in Flora of North America @ efloras.org|website=www.efloras.org}}

;Subspecies

• Antennaria howellii subsp. howellii – western + north-central US, western + central Canada including Yukon
• Antennaria howellii subsp. canadensis – northeastern US, eastern + central Canada including Labrador
• Antennaria howellii subsp. neodioica – Canada, northern US
• Antennaria howellii subsp. petaloidea – Canada, northern US

The plant is named for American botanist Thomas J. Howell, who collected the first known specimens of the plant in 1887.[https://www.biodiversitylibrary.org/item/52470#page/195/mode/1up Greene, Edward Lee 1897. Pittonia 3(16C): 174] description and commentary in English