Astragalus douglasii ( Torr. & A. Gray) A. Gray var. glaberrimus M. E. Jones, Proc. Calif. Acad. Sci.

Castillón, Eduardo Estrada, Quintanilla, José Ángel Villarreal, Delgado-Salinas, Alfonso & Rebman, Jon P., 2023, The genus Astragalus (Leguminosae: Papilionoideae: Galegeae) in Mexico, Phytotaxa 586 (1), pp. 1921-1935 : 1921-1935

21.1 Astragalus douglasii ( Torr. & A. Gray) A. Gray var. glaberrimus M. E. Jones, Proc. Calif. Acad. Sci. , ser. 2, 5(18): 645. 1895

Type:— MEXICO, Baja California, Las Huevitas, 1889, Brandegee s.n. (holotype CAS 0000759 digital image!).

Phaca glaberrima (M. E. Jones) Rydb., N. Amer. Fl. 24(6): 345. 1929.

Stem diffuse, decumbent, rarely ascendant distally, up to 70 cm long. Pod 2.8–5.5 × 1.5–2.5 cm, glabrate; ovules 22–36.

Distribution:— Distributed between geographical coordinates 31°– 29°20’N –114°10´– 115°40’W, from El Coyote, Buenavista, El Sauzalito, Rosario, through Sierra San Pedro Mártir, Valladares, Santa Cruz, El Cartabón, El Progreso, San Agustín, San Pablo, Santa Teresa, Buenavista, San Roque, Cataviña to Calamajué, into Vizcaino Desert. Sympatric with var. parishii between 30°40’N – 115°15’W (Santa Cruz y El Potrero). Variety endemic to Mexico ( Fig. 6 ).

Habitat:— Arid and dry slopes; wet sandy flood palins; alluvial plains; granite boulders, gravel and granitic soils; sandy areas of intermittent rivers; Pinus forest associated with arid shrublands with creosote bush, boojum tree, mezquite, jojoba, Josua tree, columnar cacti,prickle pear; crassicaul scrubland, also in jefreyi pine forests; oak forest; burned areas with scrbs and oak; riparian flora with willow, palms, salt cedar, small columnar cacti, California jointfir, boojum tree, creosote bush associations; 75–2100 m.

Specimens examined:—BAJA CALIFORNIA: 15 April 2000, Rancho Los Martires Area : along river zone, J. Rebman 6421 ( BCMEX, CAS, SD) ; 16 February 1998, 10 km north of Catavina on Mex-, T. R. Van Devender 98-149, M. C. Penalba, J. L. Betancourt ( NY) ; 17 September 1930, Banks of La Sanca creek, about 5 mi. NW. of La Grulla, Sierra San Pedro Martir, I. L. Wiggins 4867, D. Demares ( CAS, NY, US) ; 13 April 1931, Between San Agustin and Rancho Cataviña , I. L. Wiggins 5319 ( CAS, NY, US) ; 7 March 1930, 5–10 miles North of Cataviña , I. L. Wiggins 4400 ( CAS, NY, TEX-LL) ; 4 June 1963, Sierra San Pedro Mártir , Santa Eulalia, R. Moran 11147 ( NY, SD) ; 18 March 1984, Just N of Cataviña, D. E. Breedlove 60776 ( CAS, NY, TEX-LL) ; 2 March 1963, Baja California, North side of Cerro San Luis, R. Moran 10310, J. Henrickson ( CAS, NY, SD) ; 7 May 1973, 8 miles NW of Sauzalito , R. Moran 20892 ( MEXU, NY, SD) ; 4 June 1976, Sierra San Pedro Mártir, 2 km west of Rancho Santa Cruz , R. Moran 23448 ( NY) ; 11 March 1999, 1 km al N de Cataviña sobre la carretera a Tijuana, J. L. Panero 7410, B. Crozier, S. González, J. I. Calzada ( NY, TEX-LL) ; 3 January 1988, Vado El Palmarito 2.8 miles north of Santa Ines junction with Mexico Federal Highway 1, M. A. (Ben) Franklin 5788 ( NY) ; 21 September 1980, 3 miles north of Catavina and ¼ mi. east of highway, A. C. Sanders 2029, K.R. Neisess, J. West ( NY) ; 25 May 1974, Rte. 1, ca. 54 mi S of El Rosario, Reeves, Hensel , McGill , D. Pinkava 12198. ( NY) ; 12 May 1991, 1.8 miles north of km marker 110 of Rte. 3 on the road to Ejido Jamau, J. P. Rebman 1115, K. Rice ( NY) ; April 1958, 17.6 km north of Rancho Cataviña, P. H. Raven, M. Mathias, J. Turner 12596 ( CAS) ; 5 March 1947, Cataviña , H. S. Gentry 7341 ( CAS) ; 29 May 1961, Growing among boulders along creek, at Santa Catarina, 64 miles southeast of Ensenada , R. F. Broder 509-A ( CAS, MEXU, US) ; 22 March 2010, Ca. 35 km east of El Rosario by air and ca. 5.0 km N by air of Highway 1, B. T. Wilder 10-247, J. P. Rebman, I. A. Happle, S. I. Enciso C. ( CAS, SD, USON) ; 9 June 2016, East of San Quintin in the foothills of the Sierra de San Pedro Martir: vicinity of Rancho Santa Eulalia, J. Rebman 31681, S. Vandreplank, A. Harper ( CAS, SD) ; 2 March 2016, Arroyo Portrero tributary of Arroyo El Rosario , J. Riley 410, S. Alfaro ( CAS, SD) ; 31 March 1977, ca. 4 miles northwest of Catavina in sandy wash, G. L. Webster 21728 ( CAS, SD) ; 12 August 1998, Sierra San Pedro Martir: 1.1 miles southeast of Mike’s Sky Ranch along Rio San Rafael , J. Rebman 5552 ( CAS, SD, MEXU) ; 3 April 1998, Cataviña boulder fields: ca. 5 miles N of Cataviña and 0.6 miles west of Hwy. 1, J. Rebman 4992 ( CAS, SD) ; 5 July 1969, Sierra San Pedro Martir; Arroyo Santa Cruz, 1.5 miles west of Rancho Santa Cruz , R. Moran 16299 ( CAS, SD) ; 17 June 1939, Santa Maria Arroyo, C. F. Harbison n.n ( CAS, SD) ; 18 October 1980. Los Zaguaritos, Rio San Rafael. , R. Moran 29401 SD ); 12 June 1979, Santa Ines Study Site , 9 km NW of Rancho Santa Ines, W.H. Clark 3118 ( MEXU) ; 20 July 1988, Sierra San Pedro Martir, near La Corona de Abajo , 0.75 mi up main road from entrance gate, S. Boyd 2794, T. Ross ( MEXU) ; 29 May 1982, 40 miles E of the junction of this orad to Mex. Hwy. 1, P. Gallagher 82-101 ( ENCB) .

Figures

FIGURE 6. Map showing the distribution of Astragalus diphacus, A. douglasii var. glaberrimus, A. douglasii var. parishii, A. douglasii var. persitricuts, and A. emoryanus var. emoryanus in Mexico.