- Hirtella adderleyi Prance (1972)
- Hirtella adenophora Cuatrec. (1956)
- Hirtella aequatoriensis Prance (1999 publ. 2000)
- Hirtella americana L. (1753)
- Hirtella angustifolia Schott (1827)
- Hirtella angustissima Sandwith (1939)
- Hirtella araguariensis Prance (1972)
- Hirtella aramangensis Prance (1972)
- Hirtella arenosa Prance (1976)
- Hirtella bahiensis Prance (1972)
- Hirtella barnebyi Prance (1981)
- Hirtella barrosoi Prance (1972)
- Hirtella beckii Prance (1999)
- Hirtella bicornis Mart. & Zucc. (1832)
- Hirtella brachystachys Spruce ex Hook.f. (1867)
- Hirtella bullata Benth. (1840)
- Hirtella burchellii Britton (1890)
- Hirtella caduca Fanshawe & Maguire (1948)
- Hirtella carbonaria Little (1948)
- Hirtella castillana Prance (1999)
- Hirtella ciliata Mart. & Zucc. (1832)
- Hirtella conduplicata Prance (1976)
- Hirtella confertiflora Prance (1981)
- Hirtella cordifolia Prance (1972)
- Hirtella corymbosa Cham. & Schltdl. (1827)
- Hirtella couepiiflora Prance (1972)
- Hirtella cowanii Prance & Maguire (1972)
- Hirtella davisii Sandwith (1935)
- Hirtella deflexa Maguire, Fieldiana (1952)
- Hirtella dorvalii Prance (1972)
- Hirtella duckei Huber (1910)
- Hirtella elongata Mart. & Zucc. (1832)
- Hirtella enneandra Cuatrec., Fieldiana (1950)
- Hirtella eriandra Benth. (1840)
- Hirtella excelsa Standl. ex Prance (1972)
- Hirtella fasciculata Prance (1972)
- Hirtella floribunda Cham. & Schltdl. (1827)
- Hirtella glabrata Pilg. (1914)
- Hirtella glandulistipula Ducke (1922)
- Hirtella glandulosa Spreng. (1820)
- Hirtella glaziovii Taub. (1892)
- Hirtella gracilipes (Hook.f.) Prance (1972)
- Hirtella guainiae Spruce ex Hook.f. (1867)
- Hirtella guatemalensis Standl. (1927)
- Hirtella guyanensis (Fritsch) Sandwith (1931)
- Hirtella hebeclada Moric. ex DC. (1825)
- Hirtella hispidula Miq. (1851)
- Hirtella hoehnei Pilg. (1922)
- Hirtella insignis Briq. ex Prance (1972)
- Hirtella juruenensis Pilg. (1922)
- Hirtella kuhlmannii Pilg. (1923)
- Hirtella lancifolia Ducke (1922)
- Hirtella latifolia Prance (1972)
- Hirtella lemsii L.O.Williams & Prance (1972)
- Hirtella leonotis Pittier (1923)
- Hirtella liesneri Prance (1989)
- Hirtella lightioides Rusby (1907)
- Hirtella longifolia Benth. ex Hook.f. (1867)
- Hirtella longipedicellata Prance (1972)
- Hirtella macrophylla Benth. ex Hook.f. (1867)
- Hirtella macrosepala Sandwith (1940)
- Hirtella magnifolia Prance (1978)
- Hirtella maguirei Prance (1990)
- Hirtella margae Prance, Proc. Kon. Nederl. Akad. Wetensch. (1986)
- Hirtella martiana Hook.f. (1867)
- Hirtella mucronata Prance (1972)
- Hirtella mutisii Killip & Cuatrec., Fieldiana (1951)
- Hirtella myrmecophila Pilg. (1905)
- Hirtella obidensis Ducke (1922)
- Hirtella orbicularis Prance (1972)
- Hirtella paniculata Sw. (1788)
- Hirtella papillata Prance (1994)
- Hirtella paraensis Prance (1972)
- Hirtella parviunguis Prance (1979)
- Hirtella pauciflora Little (1948)
- Hirtella pendula Sol. ex Lam. (1789)
- Hirtella physophora Mart. & Zucc. (1832)
- Hirtella pilosissima Mart. & Zucc. (1832)
- Hirtella pimichina Lasser & Maguire (1954)
- Hirtella piresii Prance (1972)
- Hirtella punctillata Ducke (1922)
- Hirtella racemosa Lam. (1789)
- Hirtella radamii Prance (1983)
- Hirtella rasa Standl., Publ. Field Mus. Nat. Hist. (1937)
- Hirtella revillae Prance (1978)
- Hirtella rodriguesii Prance (1972)
- Hirtella rugosa Thuill. ex Pers. (1805)
- Hirtella santosii Prance (1979)
- Hirtella scaberula Spruce ex Hook.f. (1867)
- Hirtella scabra Benth. (1840)
- Hirtella schultesii Prance (1972)
- Hirtella silicea Griseb. (1860)
- Hirtella sprucei Benth. ex Hook.f. (1867)
- Hirtella standleyi Baehni & J.F.Macbr., Publ. Field Mus. Nat. Hist. (1938)
- Hirtella subglanduligera Pilg. (1914)
- Hirtella subscandens Spruce ex Hook.f. (1867)
- Hirtella suffulta Prance (1972)
- Hirtella tentaculata Poepp. (1845)
- Hirtella tenuifolia Prance (1972)
- Hirtella thouarsiana Baill. ex Laness. (1886)
- Hirtella tocantina Ducke (1922)
- Hirtella triandra Sw. (1788)
- Hirtella trichotoma Prance (1992)
- Hirtella tubiflora Cuatrec., Fieldiana (1950)
- Hirtella ulei Pilg. (1905)
- Hirtella vesiculosa Suess. (1937)
- Hirtella zanzibarica Oliv. (1876)