Rydberg, P.A., monograph of the North American Potentilleae (1898)
Monogr. N. Amer. Potent.

---

---

t. 86

---

---

name cited:
Horkelia pickeringii (Torrey ex A. Gray) Rydb.
name cited (basionym):
Ivesia pickeringii Torrey ex A. Gray
name recognized:
Horkelia pickeringii (Torrey ex A. Gray) Rydb.
name recognized (basionym):
Ivesia pickeringii Torrey ex A. Gray

---

family: Rosaceae
subfamily: Rosoideae
tribe: Potentilleae

---

epithet: pickeringii

---

Illustration contributed by:
New York Botanical Garden, U.S.A.

---

link to this page:
https://www.plantillustrations.org/illustration.php?id_illustration=211364

---

contact about this record

---

synonyms:

homotypic synonyms:
Ivesia pickeringii Torrey ex A. Gray; Potentilla pickeringii (Torrey ex A. Gray) Greene;