Every accepted species in the genus is listed. A name links to its page when we hold at least three commercially licensed photographs of it. Where we do not, the row shows how many we actually found, which is usually none.
| Species | Authority | Usable photographs | Page |
|---|---|---|---|
| Weissia squarrosa | (Nees & Hornsch.) Müll.Hal. | 129 | documented |
| Weissia controversa | Hedw. | 88 | documented |
| Weissia brachycarpa | (Nees & Hornsch.) Jur. | 21 | documented |
| Weissia angustifolia | (Baumgartner) D.A.Callaghan | 16 | documented |
| Weissia longifolia | Mitt. | 3 | documented |
| Weissia abbreviata | (Thwaites & Mitt.) R.H.Zander | 0 | below the evidence gate |
| Weissia andrewsii | E.B.Bartram | 0 | below the evidence gate |
| Weissia argentinica | Müll.Hal. | 0 | below the evidence gate |
| Weissia armata | (Thér. & Trab.) Fedosov | 0 | below the evidence gate |
| Weissia artocosana | R.H.Zander | 0 | below the evidence gate |
| Weissia ayresii | Schimp. ex Besch. | 0 | below the evidence gate |
| Weissia balansae | (Müll.Hal.) R.H.Zander | 0 | below the evidence gate |
| Weissia balansana | (Besch.) Müll.Hal. | 0 | below the evidence gate |
| Weissia bizotii | R.H.Zander | 0 | below the evidence gate |
| Weissia borbonica | (Bizot & Onr.) Arts | 0 | below the evidence gate |
| Weissia brachypelma | Müll.Hal. | 0 | below the evidence gate |
| Weissia brachypoma | C.C.Towns. | 0 | below the evidence gate |
| Weissia breutelii | Müll.Hal. | 0 | below the evidence gate |
| Weissia condensa | (Voit) Lindb. | 0 | below the evidence gate |
| Weissia cucullata | Müll.Hal. | 0 | below the evidence gate |
| Weissia dieterleniae | Thér. | 0 | below the evidence gate |
| Weissia diffidentia | R.H.Zander | 0 | below the evidence gate |
| Weissia edentula | Mitt. | 0 | below the evidence gate |
| Weissia exserta | (Broth.) P.C.Chen | 0 | below the evidence gate |
| Weissia felipponei | Thér. | 0 | below the evidence gate |
| Weissia fornicata | Brid. | 0 | below the evidence gate |
| Weissia francii | (Thér.) Thouvenot | 0 | below the evidence gate |
| Weissia ghatensis | Dixon & P.de la Varde | 0 | below the evidence gate |
| Weissia glauca | E.B.Bartram | 0 | below the evidence gate |
| Weissia humicola | Müll.Hal. | 0 | below the evidence gate |
| Weissia inoperculata | (H.A.Crum) H.A.Crum, Steere & L.E.Anderson | 0 | below the evidence gate |
| Weissia jamaicensis | (Mitt.) Grout | 0 | below the evidence gate |
| Weissia japonica | (G.Roth) Y.Inoue & H.Tsubota | 0 | below the evidence gate |
| Weissia kaikouraensis | R.Br.bis | 0 | below the evidence gate |
| Weissia keralensis | A.E.D.Daniels & Athira | 0 | below the evidence gate |
| Weissia kiiensis | (S.Okamura) Y.Inoue & H.Tsubota | 0 | below the evidence gate |
| Weissia krassavinii | (Laz.) Laz. ex Ochyra | 0 | below the evidence gate |
| Weissia kunzeana | Müll.Hal. | 0 | below the evidence gate |
| Weissia latiuscula | Müll.Hal. | 0 | below the evidence gate |
| Weissia leptocarpa | Schimp. ex Besch. | 0 | below the evidence gate |
| Weissia leratii | (Broth. & Paris) P.Sollman | 0 | below the evidence gate |
| Weissia levieri | (Limpr.) Kindb. | 0 | below the evidence gate |
| Weissia ligulifolia | (E.B.Bartram) Grout | 0 | below the evidence gate |
| Weissia lineifolia | Müll.Hal. | 0 | below the evidence gate |
| Weissia longidens | Cardot | 0 | below the evidence gate |
| Weissia lorentzii | (Müll.Hal.) R.H.Zander | 0 | below the evidence gate |
| Weissia ludoviciana | (Sull.) W.D.Reese & B.A.E.Lemmon | 0 | below the evidence gate |
| Weissia minuta | (Dixon & P.de la Varde) M.N.Aziz & Vohra | 0 | below the evidence gate |
| Weissia mittenii | (Bruch & Schimp.) Mitt. | 0 | below the evidence gate |
| Weissia muhlenbergiana | (Sw.) W.D.Reese & B.A.E.Lemmon | 0 | below the evidence gate |
| Weissia neocaledonica | (Thér.) R.H.Zander | 0 | below the evidence gate |
| Weissia newcomeri | (E.B.Bartram) K.Saito | 0 | below the evidence gate |
| Weissia nicogarciae | Larraín & M.J.Cano | 0 | below the evidence gate |
| Weissia nitida | Reinw. & Hornsch. | 0 | below the evidence gate |
| Weissia norkettii | R.S.Chopra ex Crosby | 0 | below the evidence gate |
| Weissia obtusata | Müll.Hal. | 0 | below the evidence gate |
| Weissia occidentalis | (Flowers) A.H.Stoneb. | 0 | below the evidence gate |
| Weissia occulta | Wallr. | 0 | below the evidence gate |
| Weissia ovalis | (R.S.Williams) E.B.Bartram | 0 | below the evidence gate |
| Weissia ovatifolia | Kürschner | 0 | below the evidence gate |
| Weissia papillosa | Dixon & Naveau | 0 | below the evidence gate |
| Weissia parajaponica | Y.Inoue & H.Tsubota | 0 | below the evidence gate |
| Weissia patula | (C.Knight) Fife | 0 | below the evidence gate |
| Weissia perpusilla | (Müll.Hal.) I.G.Stone | 0 | below the evidence gate |
| Weissia perssonii | Kindb. | 0 | below the evidence gate |
| Weissia phascopsis | R.H.Zander | 0 | below the evidence gate |
| Weissia planifolia | Dixon | 0 | below the evidence gate |
| Weissia platystegia | (Dixon) A.Eddy | 0 | below the evidence gate |
| Weissia ricciae | Brid. | 0 | below the evidence gate |
| Weissia riograndensis | (Broth.) R.H.Zander | 0 | below the evidence gate |
| Weissia rostellata | (Brid.) Lindb. | 0 | below the evidence gate |
| Weissia rutilans | (Hedw.) Lindb. | 0 | below the evidence gate |
| Weissia semidiaphana | (Thér.) R.H.Zander | 0 | below the evidence gate |
| Weissia semiinvoluta | Müll.Hal. | 0 | below the evidence gate |
| Weissia sharpii | L.E.Anderson & B.A.E.Lemmon | 0 | below the evidence gate |
| Weissia simplex | Brid. | 0 | below the evidence gate |
| Weissia socotrana | Mitt. | 0 | below the evidence gate |
| Weissia splachnum | Garov. | 0 | below the evidence gate |
| Weissia sterilis | W.E.Nicholson | 0 | below the evidence gate |
| Weissia subacaulis | Mitt. | 0 | below the evidence gate |
| Weissia termitidarum | Müll.Hal. | 0 | below the evidence gate |
| Weissia willisiana | (Sainsbury) Catches. | 0 | below the evidence gate |
| Weissia wilsonii | D.A.Callaghan | 0 | below the evidence gate |
| Weissia wimmeriana | (Sendtn.) Bruch & Schimp. | 0 | below the evidence gate |
This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species needs at least three usable photographs before we will build it a page, because a page with one picture and no traits tells you nothing you could not get from a search result, and generating hundreds of thousands of those is precisely the practice that got the previous version of this site deleted.
So the species above without a link are not errors and they are not omissions. They are real, accepted plants that we cannot yet document to the standard we hold ourselves to, and the count in the photographs column is exactly how far short we fall.