Le Jardin de Mère Nature dans une Petite Planète - Pima County

Millet, Triguillo (Spanish), Witchgrass, Zacate de Año (Spanish), Zacate Peludo Perdis (Spanish).
DESCRIPTION: Terrestrial annual graminoid (erect-spreading culms 2 to 40 inches in height); flowering
generally takes place between mid-August and mid-October (flowering beginning as early as July has
been reported). HABITAT: Within the range of this species it has been reported from mountains; sandy
mesas; canyons; gravelly, gravelly-sandy and sandy canyon bottoms; rocky ledges; openings in
woodlands; meadows; rocky hills; rocky, rocky-clayey and gravelly hillsides; rocky and gravelly slopes;
bajadas; amongst boulders; dunes; sandy plains; clayey flats; basins; valley floors; along rocky-loamy
roadsides; sandy draws; along seeps; along streams; streambeds; along and in oases; gravelly, gravellysandy,
sandy and silty washes; within sandy drainage ways; sandy-silty depressions; clayey-loamy and
silty swales; along margins of washes; along gravelly-sandy floodplains; mesquite bosques; ditches;
sandy riparian areas, and disturbed areas growing in wet, moist and dry bouldery, rocky, gravelly,
gravelly-sandy and sandy ground; rocky loam, gravelly loam and clay loam ground; rocky clay and
gravelly clay and clay ground, and sandy silty and silty ground, occurring from sea level to 6,800 feet in
elevation in the forest, woodland, scrub, grassland, desertscrub and wetland ecological formations.
NOTES: The species, Panicum hirticaule, was reported to have been utilized by native peoples of North
America and could be investigated to determine its value as a home garden or commercial food crop.
Panicum hirticaule var. hirticaule is native to southwest-central and southern North America; Central
America, and South America. *5, 6, 30 (species), 33 (recorded as Panicum capillare L. var. hirticaule
(Presl) Gould, Page 283; Panicum capillare L. var. pampinsonum (Hitchc. & Chase) Gould, Page 284,
and Panicum sonorum Beal, Page 282), 43 (101809), 46 (recorded as Panicum pampinsonum (A.S.
Hitchcock & M.A. Chase, Page 136), 63 (101809 - Panicum hirticaule J. Presl var. hirticaule), 77, 80
(Species of the genus Panicum are listed as Rarely Poisonous and Suspected Poisonous Range Plants.
Species of this genus have been reported to cause loss in livestock due to photosensitization and nitrate
poisoning.), 85 (101809 - Panicum hirticaule var. hirticaule J. Presl), 127, 138*
Panicum pampinsonum (see Panicum hirticaule var. hirticaule)
Panicum sonorum (see Panicum hirticaule var. hirticaule)
Pappophorum apertum (see Pappophorum vaginatum)
Pappophorum mucronulatum (see Pappophorum vaginatum)
Pappophorum vaginatum S.B. Buckley: Whiplash Pappusgrass
SYNONYMY: Pappophorum apertum W. Munro ex F. Lamson-Scribner, Pappophorum
mucronulatum auct. non C.G. Nees von Esenbeck. COMMON NAMES: Mucronulate Pappusgrass,
Pappusgrass, Pima Pappusgrass, Whiplash Pappusgrass. DESCRIPTION: Terrestrial perennial graminoid
(a bunchgrass (clumpgrass) 16 to 52 inches in height); the foliage is gray-green or light green; the
inflorescences may be tinged with purple; based on few flowering records available, flowering generally
takes place between late March and late October (flowering records: two for late March, one for late
April, one for early July, one for late August, three for early September, one for mid-September and one
for late October). HABITAT: Within the range of this species it has been reported from mountains;
mountaintops; mesas; rocky canyons; bases of cliffs; ridgetops; foothills; rocky hillsides; rocky, sandy
and clayey slopes; bajadas; rocky plains; gravelly and sandy-silty flats; basins; valley floors; valley
bottoms; coastal dunes; sandy coastal flats; along railroad right-of-ways; along stony and sandy roadsides,
along sandy gullies; along creeks; along and in gravelly washes; along drainage ways; depressions; banks
of washes; along edges of washes; margins of washes; floodplains; dams; in sandy ditches, and disturbed
areas growing in moist and dry rocky, stony, gravelly and sandy ground; clayey loam ground, clay
ground, and sandy silty ground, occurring from sea level to 4,800 feet in elevation in the grassland,
desertscrub and wetland ecological formations. NOTES: This plant may be an attractive component of a
restored native habitat. Pappophorum vaginatum is native to southwest-central and southern North