§17.12 Endangered and threatened plants.

(a) The list in paragraph (h) of this section contains the plant species determined by the Service or the National Marine Fisheries Service (NMFS) of the Department of Commerce's National Oceanic and Atmospheric Administration (hereafter in this section referred to as “the Services”) to be endangered species or threatened species. It also contains the plant species treated as endangered or threatened because they are similar in appearance to and may be confused with endangered or threatened species (see §§17.50 through 17.52). The “Common name,” “Scientific name,” “Where listed,” and “Status” columns provide regulatory information; together, they identify listed plant species within the meaning of the Act and describe where they are protected. When a taxon has more than one entry, the “Where listed” or “Status” column will identify its status in each relevant geographic area. The listing of a particular taxon includes all lower taxonomic units.

Abbreviation	Regulatory status the abbreviation represents
E	Endangered species.
T	Threatened species.
E (S/A)	Endangered based on similarity of appearance to an existing listed species.
T (S/A)	Threatened based on similarity of appearance to an existing listed species.
XE	Essential experimental population (See subpart H of this part).
XN	Nonessential experimental population (See subpart H of this part).

Superscript	Description of citation or rule
N	NMFS listing citation (NMFS Lead).
J	Both FWS and NMFS listing citation (Joint Jurisdiction).
CH	Critical habitat rule.
4d	Species-specific “4(d)” rule (a rule issued under the authority of section 4(d) of the Act).
10j	Species-specific “10(j)” rule (a rule issued under the authority of section 10(j) of the Act).

Scientific name	Common name	Where listed	Status	Listing citations and applicable rules
Flowering Plants
Abronia macrocarpa	Large-fruited sand-verbena	Wherever found	E	53 FR 37975, 9/28/1988.
Abutilon eremitopetalum	No common name	Wherever found	E	56 FR 47686, 9/20/1991.
Abutilon menziesii	Kooloaula	Wherever found	E	51 FR 34412, 9/26/1986.
Abutilon sandwicense	No common name	Wherever found	E	56 FR 55770, 10/29/1991; 50 CFR 17.99(i). ^CH
Acaena exigua	Liliwai	Wherever found	E	57 FR 20772, 5/15/1992; 50 CFR 17.99(e)(1). ^CH
Acanthomintha ilicifolia	San Diego thornmint	Wherever found	T	63 FR 54938, 10/13/1998; 50 CFR 17.96(a). ^CH
Acanthomintha obovata ssp. duttonii	San Mateo thornmint	Wherever found	E	50 FR 37858, 9/18/1985.
Achyranthes mutica	No common name	Wherever found	E	61 FR 53108, 10/10/1996; 50 CFR 17.99(k). ^CH
Achyranthes splendens var. rotundata	Round-leaved chaff-flower	Wherever found	E	51 FR 10518, 3/26/1986; 50 CFR 17.99(i). ^CH
Aconitum noveboracense	Northern wild monkshood	Wherever found	T	43 FR 17910, 4/26/1978.
Aeschynomene virginica	Sensitive joint-vetch	Wherever found	T	57 FR 21569, 5/20/1992.
Agalinis acuta	Sandplain gerardia	Wherever found	E	53 FR 34701, 9/7/1988.
Agave eggersiana	No common name	Wherever found	E	79 FR 53303, 9/9/2014; 50 CFR 17.96(a). ^CH
Alectryon macrococcus	Mahoe	Wherever found	E	57 FR 20772, 5/15/1992; 50 CFR 17.99(a)(1); ^CH 50 CFR 17.99(c) ; ^CH 50 CFR 17.99(e) ); ^CH 50 CFR 17.99(i). ^CH
Allium munzii	Munz's onion	Wherever found	E	63 FR 54975, 10/13/1998; 50 CFR 17.96(a). ^CH
Alopecurus aequalis var. sonomensis	Sonoma alopecurus	Wherever found	E	62 FR 54791, 10/22/1997.
Amaranthus brownii	No common name	Wherever found	E	61 FR 43178, 8/21/1996; 50 CFR 17.99(g). ^CH
Amaranthus pumilus	Seabeach amaranth	Wherever found	T	58 FR 18035, 4/7/1993.
Ambrosia cheiranthifolia	South Texas ambrosia	Wherever found	E	59 FR 43648, 8/24/1994.
Ambrosia pumila	San Diego ambrosia	Wherever found	E	67 FR 44372, 7/2/2002; 50 CFR 17.96. ^CH
Amorpha crenulata	Crenulate lead-plant	Wherever found	E	50 FR 29345, 7/18/1985.
Amphianthus pusillus	Little amphianthus	Wherever found	T	53 FR 3560, 2/5/1988.
Amsinckia grandiflora	Large-flowered fiddleneck	Wherever found	E	50 FR 19374, 5/8/1985; 50 CFR 17.96(a). ^CH
Amsonia kearneyana	Kearney's blue-star	Wherever found	E	54 FR 2131, 1/19/1989.
Apios priceana	Price's potato-bean	Wherever found	T	55 FR 429, 1/5/1990.
Arabis georgiana	Georgia rockcress	Wherever found	T	79 FR 54627, 9/12/2014; 50 CFR 17.96(a). ^CH
Arabis hoffmannii	Hoffmann's rock-cress	Wherever found	E	62 FR 40954, 7/31/1997.
Arabis mcdonaldiana	McDonald's rock-cress	Wherever found	E	43 FR 44810, 9/28/1978.
Arabis (=Boechera) perstellata	Braun's Rock-cress	Wherever found	E	60 FR 56, 1/3/1995; 50 CFR 17.96(a). ^CH
Arctomecon humilis	Dwarf bear-poppy	Wherever found	E	44 FR 64250, 11/6/1979.
Arctostaphylos confertiflora	Santa Rosa Island manzanita	Wherever found	E	62 FR 40954, 7/31/1997.
Arctostaphylos franciscana	Franciscan manzanita	Wherever found	E	77 FR 54434, 9/5/2012; 50 CFR 17.96(a). ^CH
Arctostaphylos glandulosa ssp. crassifolia	Del Mar manzanita	Wherever found	E	61 FR 52370, 10/7/1996.
Arctostaphylos hookeri var. ravenii	Presidio manzanita	Wherever found	E	44 FR 61910, 10/26/1979.
Arctostaphylos morroensis	Morro manzanita	Wherever found	T	59 FR 64613, 12/15/1994.
Arctostaphylos myrtifolia	Ione manzanita	Wherever found	T	64 FR 28403, 5/26/1999.
Arctostaphylos pallida	Pallid manzanita	Wherever found	T	63 FR 19842, 4/22/1998.
Arenaria cumberlandensis	Cumberland sandwort	Wherever found	E	53 FR 23745, 6/23/1988.
Arenaria paludicola	Marsh sandwort	Wherever found	E	58 FR 41378, 8/3/1993.

...

§17.12 Endangered and threatened plants.