Erythrina humeana       2438

This shrub is 0,5-3,0m tall. The juvenile parts are thinly pubescent.

The leaves are synanthous, chartaceous. The petiole, rhachis and sometimes veins are aculeate. The leaflet shape is variable, oblate, ovate-subacute, ovate-long-acuminate, or hastate. The lateral leaflets are 45-130 x 30-90mm, terminal leaflet 45-130 x 45-120mm. The stipels are glandular, obtuse or truncate.

The inflorescences are lax, contemporary with the leaves, distally erect. The peduncle and rhachis are progressively elongating to 500mm. The flowers are deflexed at anthesis, not gaping. The calyx is red. The tube is narrowly campanulate, subtruncate. The teeth are spreading, the abaxial tooth oblong, others acute, 2mm long. The vexillum is scarlet, deflexed, obtuse, 35-50 x 14-21mm, subglabrous. The alae are oblong-arcuate, 6-12 x 3mm. The carina segments are partly connate abaxially or, rarely, free, quadrangular-unguiculate, 6-8 x 3-4mm. The stamens are included, diadelphous with vexillary filament partly coherent, disc with 10 rounded lobes, white.

The fruit is subligneous, falcate, moniliform, blackish, smooth. The seeds are scarlet, 6,0-7,0 x 5,0-6,2mm. The hilum is oval, depressed, pale, 3,5-4,0 x 2,0mm.

Medicinal plant
Traditional remedies prepared from the roots are used to treat sprains, wounds and swellings.

- Erythrinas cultivated in California, McClintock, E. Allertonia 1982. JStor
- Erythrineae (Fabaceae) in southern Africa, Hennessy, EF Franklin. Bothalia 1991 Vol. 21(1) pag. 1-25. Address
- Ethnomedicinal, phytochemical, therapeutic and pharmacological review of the genus Erythrina, Kaushal, Aparna and Sharma, Munit and Navneet, Munish Sharma. Int. J. Bot. Stud 2020 Vol. 5 pag. 642-648. ResearchGate
- Field studies of six southern African species of Erythrina, Guillarmod, A Jacot and Jubb, RA and Skead, CJ. Annals of the Missouri Botanical garden 1979 pag. 521-527. JStor
- Indigenous Plants A South Africa Guide, Pitta Joffe & Tinus Oberholzer. 2012 pag. 167. ISBN
- PlantZafrica, Andrew Hankey. Walter Sisulu NBG 2001. Erythrina humeana
- The flowering plants of South Africa, I.B. Pole-Evans. Veld & Flora 1923 Vol. 3 pag. 112. Address
- The identity of Erythrina princeps, Codd, LE. Bothalia 1974 Vol. 11(3) pag. 269-271. Address

- A taxonomic revision of Erythrina L.(Fabaceae: Faboideae) in Australia, Bean, AR. Austrobaileya 2008 pag. 641-658. JStor
- Caracterización Morfológica de Semillas de Plantas Leñosas de un Ecosistema Amenazado: Los Bosques Estacionalmente Secos del Valle del Marañon Jáen, Perú, José Luis Marcelo Peña, Anny Yosmeli Rufasto Garcia & Elio Samajen Juwag. 2021. Address
- Erythrina Symposium IV. Erythrina (Fabaceae: Faboideae), Rupert C. Barneby, B. A. Krukoff, and Peter H. Raven. 1982. Address
- Erythrineae (Fabaceae) in southern Africa, Hennessy, EF Franklin. Bothalia 1991 Vol. 21(1) pag. 1-25. Address
- Field studies of six southern African species of Erythrina, Guillarmod, A Jacot and Jubb, RA and Skead, CJ. Annals of the Missouri Botanical garden 1979 pag. 521-527. JStor
- Notes on Certain South African Erythrina Species., Codd, LE. Bothalia 1956 Vol. 6(3) pag. 507-514. Address
- Notes on the species of Erythrina. XII, B. A. Krukoff. Annals of the Missouri Botanical Garden 1979 Vol. 66(3) pag. 422-445. JStor
- The South African species of Erythrina, Collett, DG. Bothalia 1941 Vol. 4(1) pag. 219-228. Address
- Alkaloids of genus Erythrina: An updated review, Fahmy, Nouran M and Al-Sayed, Eman and El-Shazly, Mohamed and Nasser Singab, Abdel. Natural product research 2020 Vol. 34(13) pag. 1891-1912. Address
- Ethnomedicinal, phytochemical, therapeutic and pharmacological review of the genus Erythrina, Kaushal, Aparna and Sharma, Munit and Navneet, Munish Sharma. Int. J. Bot. Stud 2020 Vol. 5 pag. 642-648. ResearchGate
- Erythrina in Southern Africa, Hennessy, EF. Veld & Flora 1975 Vol. 61(3) pag. 20-23. Address
- Erythrinas cultivated in California, McClintock, E. Allertonia 1982. JStor
- Hommes et Plantes. Vol. 105 pag. 11-15. Address
- PlantÆxoticA. 2015 Vol. 49 pag. 4-27. Address

Biological type: shrub
Frost resistance: 25ºF
Leaf color: dark green
Flower color: red
IUCN Red List of threatened species status: Least Concern

Specifications for the Mediterranean basin
Adult size (h x w): 8,2ft x 13,1ft
Sun exposure: full sun (Sun hours: >6h
Foliage: deciduous
Growth: fast
Flowering time from June until September

Specific information for our garden
Planting substrate: 30%Compost+30%Coco+40%Sand
Plant watering: 1x a week pH 6.5
Logical sequence of containers for: Eucalyptus; forestry plate, forestry pot 3L, Airpot 12L, Airpot 50L, Airpot 800L
Propagation is done by cuttings

Ecology in its country of origin
Rainfall: 700-1500mm
Gravelly soil: much

SPRING Scarify the seed coating. Soak the seeds in warm water of 86°F for 24-48h (Change the water every 12 hours) until the seeds swell. Sow the seeds at 10mm depth in the Well Drained Seed Sowing Mix between 68-77°F. The container with the seeds is placed in a saucer of water until germination occurs. As a result, the moisture reaches the seeds by capillary action and ensures that the seeds do not dry out. The seeds germinate in 2-4 weeks.

Germination references
- PlantZafrica, Andrew Hankey. Walter Sisulu NBG 2001. Erythrina humeana

Germination references for the genus
- Supplementary Notes on the American Species of Erythrina. I., Krukoff, BA. American Journal of Botany 1941 Vol. 28(8) pag. 683-691. JStor
- Supplementary Notes on the American Species of Erythrina-II, Krukoff, BA. Bulletin of the Torrey Botanical Club 1943 pag. 633-637. JStor