Species of Greatest Conservation Need
427 species
| Scientifc Name | Common Name | Taxonomic Group | Federal Status | State Status | Global Rank | State Rank | Endemic |
|---|---|---|---|---|---|---|---|
| Hymenoxys vaseyi | Vasey's bitterweed | Plants | Not Listed | Not Listed | G2 | S1 | No |
| Ipomoea shumardiana | Shumard's morning glory | Plants | Not Listed | Not Listed | G2G3 | S1 | No |
| Ipomopsis havardii | Havard's standing cypress | Plants | Not Listed | Not Listed | G3 | S3 | No |
| Isoetes lithophila | rock quillwort | Plants | Not Listed | T 03/30/2020 |
G1 | S1 | Yes |
| Justicia runyonii | Runyon's water-willow | Plants | Not Listed | Not Listed | G3 | S2 | No |
| Justicia warnockii | Warnock's water-willow | Plants | Not Listed | Not Listed | G3 | S3 | No |
| Justicia wrightii | Wright's water-willow | Plants | Not Listed | Not Listed | G2 | S1S2 | Yes |
| Kallstroemia perennans | perennial caltrop | Plants | Not Listed | Not Listed | G1 | S1 | Yes |
| Lachnocaulon digynum | tiny bog button | Plants | Not Listed | Not Listed | G3G4 | S1 | No |
| Laennecia turnerorum | Turner's horseweed | Plants | Not Listed | Not Listed | G1 | S1 | Yes |
| Leavenworthia texana | Texas golden gladecress | Plants | E 10/11/2013 |
E 03/20/2015 |
G1 | S1 | Yes |
| Lechea mensalis | Chisos pinweed | Plants | Not Listed | Not Listed | G1 | S1 | No |
| Leitneria pilosa ssp. pilosa | corkwood | Plants | Not Listed | Not Listed | G2G3T2 | S2 | No |
| Lenophyllum texanum | Texas stonecrop | Plants | Not Listed | Not Listed | G3 | S3 | No |
| Lepidospartum burgessii | gypsum scalebroom | Plants | Not Listed | T 03/30/2020 |
G1 | S1 | No |
| Leucosyris blepharophylla | gypsum hotspring aster | Plants | Not Listed | Not Listed | G1 | S1 | No |
| Leucosyris mattturneri | Matt Turner's aster | Plants | Not Listed | Not Listed | G1 | S1 | Yes |
| Liatris bracteata | coastal gay-feather | Plants | Not Listed | Not Listed | G2G3 | S2S3 | Yes |
| Liatris cymosa | branched gay-feather | Plants | Not Listed | Not Listed | G2 | S2 | Yes |
| Liatris glandulosa | glandular gay-feather | Plants | Not Listed | Not Listed | G2 | S2 | Yes |
| Liatris tenuis | slender gay-feather | Plants | Not Listed | Not Listed | G3 | S3 | No |
| Lycium puberulum var. berberioides | silvery wolfberry | Plants | Not Listed | Not Listed | G4T3 | S3 | Yes |
| Lycium texanum | Texas wolf-berry | Plants | Not Listed | Not Listed | G2 | S2 | No |
| Lythrum ovalifolium | Plateau loosestrife | Plants | Not Listed | Not Listed | G3G4 | S3S4 | No |
| Malaxis wendtii | Wendt's malaxis | Plants | Not Listed | Not Listed | G1G2 | S1 | No |