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Compilation
Corispermum americanum

18 Images see all

Isotype of Corispermum americanum (Nuttall) Nuttall var. rydbergii Mosyakin [family CHENOPODIACEAE]
Holotype of Corispermum simplicissimum Lunell [family CHENOPODIACEAE]
Holotype? of Corispermum imbricatum A. Nelson [family AMARANTHACEAE]
Filed as Corispermum americanum (Nutt.) Nutt. [family AMARANTHACEAE]
Filed as Corispermum americanum [family AMARANTHACEAE]
Type of Corispermum americanum (Nutt.) Nutt. [family CHENOPODIACEAE]
Paratype of Corispermum marginale Rydb. [family AMARANTHACEAE]
Filed as Corispermum americanum (Nutt.) Nutt. [family AMARANTHACEAE]
Filed as Corispermum americanum (Nutt.) Nutt. [family AMARANTHACEAE]
Filed as Corispermum americanum (Nutt.) Nutt. [family AMARANTHACEAE]
Isotype of Corispermum americanum (Nutt.) Nutt. var. rydbergii Mosyakin [family CHENOPODIACEAE]
Filed as Corispermum americanum Nutt. [family CHENOPODIACEAE]
Isotype of Corispermum americanum (Nutt.) Nutt. var. rydbergii Mosyakin [family CHENOPODIACEAE]
Corispermum americanum (Nutt.) Nutt. [family CHENOPODIACEAE]
Isotype of Corispermum americanum Nutt. [family CHENOPODIACEAE]
Corispermum americanum (Nutt.) Nutt. [family CHENOPODIACEAE]
Corispermum americanum (Nutt.) Nutt. [family CHENOPODIACEAE]
Paratype of Corispermum welshii Mosyakin [family AMARANTHACEAE]
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Name

Identification
Corispermum hyssopifolium Nutt. [family CHENOPODIACEAE ] (stored under name); Corispermum americanum (Nutt.) Nutt. [family CHENOPODIACEAE ]
Related name
  • Corispermum americanum
  • Corispermum simplicissimum
  • Corispermum hyssopifolium
Common name
  • American bugseed, Flora of North America Vol. 4

Flora

Entry for Corispermum americanum (Nuttall) Nuttall [family CHENOPODIACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 4,
Names
Corispermum americanum (Nuttall) Nuttall [family CHENOPODIACEAE], Trans. Amer. Philos. Soc., n. s., 5: 165. 1834
Corispermum hyssopifolium Linnaeus var. americanum Nuttall [family CHENOPODIACEAE], Gen. N. Amer. Pl., 1: 4. 1818
Corispermum imbricatum A. Nelson [family CHENOPODIACEAE]
Corispermum marginale Rydberg [family CHENOPODIACEAE]
Corispermum simplicissimum Lunell [family CHENOPODIACEAE]
Treatment Author(s)
Sergei L. Mosyakin
Information
Plants branched from or beyond base (rarely simple or with few simple branches), 10–35(–50) cm, sparsely covered with dendroid or stellate hairs, often becoming glabrous. Leaf blades linear or narrowly linear (occasionally linear-lanceolate or almost filiform), usually plane or occasionally folded (especially in dry plants), 1.5–3.5(–4) × 0.1–0.3 cm. Inflorescences usually lax, interrupted, rarely ± condensed distally, linear, narrowly linear, or occasionally narrowly clavate. Bracts ovate-lanceolate,lanceolate, linear-lanceolate, or occasionally proximal ones almost linear, much longer than distal, 0.5–2(–3.5) × (0.2–)0.3–0.7 cm. Perianth segment 1. Fruits yellowish brown, greenish brown, light brown, or brown, often with reddish brown spots and whitish warts, slightly convex abaxially, usually plane or slightly concave adaxially, obovate or obovate-elliptic, usually broadest beyond middle, (2.3–)2.5–4.5 × 2–3.5 mm, shiny or dull; wing translucent, thin, (occasionally translucent only at margin, thick), (0.15–)0.2–0.3(–0.4) mm wide, margins entire or rarely indistinctly erose, apex broadly triangular, less commonly truncate or rounded.
Distribution
North AmericaMexico.
Discussion
Corispermum americanum var. americanum may also occur in British Columbia, where only immature specimens have been seen. Specimens from Oregon and Wyoming are transitional toward Corispermum villosum. The names C. hyssopifolium and C. nitidum were commonly misapplied to this native species by many authors (see also note under C. nitidum).

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