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* Lepidium bonariense L. — Habit: Herb. Habitat: N/A. Distribution: IV. Voucher: E/A. References: Bussmann (1994), Bussmann & Beck (1995a), Agnew (2013)., Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 65, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464, {"references":["Bussmann, R. W. (1994) The forest of Mt. Kenya (Kenya): Vegetation, ecology, destruction and management of a tropical mountain forest ecosystem. Ph. D. dissertation, Universitat Bayreuth Startseite, Bayreuth, 252 pp.","Bussmann, R. W. & Beck, E. (1995 a) The forests of Mt. Kenya (Kenya), a phytosociological synopsis. Phytocoenologia 25 (4): 467 - 560. https: // doi. org / 10.1127 / phyto / 25 / 1995 / 467","Agnew, A. D. Q. (2013) Upland Kenya wild flowers and ferns, 3 rd edn. Nature Kenya Publications, Nairobi, 733 pp."]}

An investigation of the diversity and distribution of wild crucifer species and their importance for cultivated crucifers was conducted during 2005 and 2006 in the highland and mid-altitude semi-arid areas of Kenya. Thirteen species of wild crucifers in nine genera were recorded:Raphanus raphanistrum,Erucastrum arabicum,Sisymbrium officinale,Crambe kilimandscharica,Capsella bursa-pastoris,Rorippa nudiuscula,Ro. micrantha,Ro. microphylla,Lepidium bonariense,Coronopus didymus,Brassica rapa,B. junceaand an unidentifiedBrassicaspecies. Highland areas had significantly higher species diversity and species richness than mid-altitude semi-arid areas. Species richness, diversity and evenness varied with season and location.Raphanus raphanistrumwas the dominant non-cultivated species in the highlands followed byE. arabicum, which was also present and dominant in the semi-arid study sites. Diamondback moth (DBM) was recorded from ten wild crucifer species andR. raphanistrumandE. arabicumwere the preferred host plant species. Overall, four larval, one larval-pupal and one pupal parasitoid of DBM were recorded:Diadegma semiclausum,D. mollipla, Apanteles sp.,Cotesia plutellae, Oomyzus sokolowskiiandBrachymeriaspecies, respectively.Diadegma semiclausumwas the most dominant species on all crucifers. We conclude that wild crucifers act as alternative hosts for DBM and provide refugia for DBM parasitoids, which risk local extinction through pesticide application or competition from introduced exotic parasitoid species. The wild crucifers also act as recolonization sites for DBM parasitoids.

Lepidium bonariense Linnaeus, Species Plantarum 2: 645. 1753. "Habitat in Bonaria." RCN: 4695. Lectotype (Marais in Codd & al., Fl. Southern Africa 13: 93. 1970): [icon] " Thlaspi Bonar. multiscissum, flore invisibili " in Dillenius, Hort. Eltham. 2: 381, t. 286, f. 370. 1732. Current name: Lepidium bonariense L. (Brassicaceae)., Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 620, DOI: 10.5281/zenodo.291971

The sole glucosinolate in the seed-bearing portion of Lepidium bonariense L., collected in Queensland, is shown to be p -methoxybenzylglucosinolate (IV). Seed material of L. hyssopifolium Desv., collected in Queensland, contains solely 3,4,5-trimethoxybenzylglucosinolate (V). A previous report on the presence of benzylglucosinolate in L. hyssopifolium is discussed.