Pacific Island Ecosystems at Risk (PIER)

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Inga feuilleei
DC., Fabaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 3 (Go to the risk assessment)

Other Latin names:  Inga edulis sensu auct.; Inga feuillei DC. [spelling variant]

Common name(s): [more details]

Spanish: pacae, pacae de Lima, pacai, pacay

Habit:  tree

Description:  "Young branchlets, leaf-rachi, inflorescences including the calyces and pods densely rusty pubescent with a short tomentose-villous indument; rachis wings rather prominent, the glands scarcely so; leaflets 3-5 pairs, oblong-elliptic, obliquely rounded at base, acuminate, finely reticulate, sparsely hirsutulous above, or the midnerve usually rusty-villous, hirsute-villous on the nerves and veins beneath, subcoriaceous, the larger terminal ones 1-2 dm. long, about 8 cm. broad; peduncles axillary, 4-11 cm. long, the spikes to 3 cm. long; bracts linear, shorter than the calyx, mostly persisting until after anthesis; calyx tubular, 8-10 mm. long with short acutish teeth; corolla densely sericeous-villous, 17 mm. long, or slightly longer, the stamen tube included; pods flat, 2 to several dm. long, about 2 cm. broad with dilated obscurely bisulcate margins. Becoming a large tree with spreading crown. (Macbride, 1943; 13(3/1)23-24).

"1-pinnately compound leaves with 3-4 pairs of leathery, tapering-elliptic leaflets arranged oppositely along a winged axis (central stem).  The white, mimosa-type, 1.25-1.5-inch long flowers are borne in heads at the apeses of brownish-fuzzy stalks.  The green pods are flattened, 8-24 inches long and 2-3 inches wide, and 4-angled by virtue of their distinctly raised margins  (Staples & Herbst, 2005; p. 332).

Habitat/ecology:  "Daylength: Pacay is apparently daylength neutral, at least within the subtropics, which in any case are its outer limits.

Rainfall: Pacay requires a subtropical climate with plenty of moisture. At Yurimaguas (Peruvian Amazon), both I. feuillei and I. edulis are very productive (wood, leaf, and fruit) at 1,500-2,700 mm annual rainfall.

Altitude: Up to 1,500-1,800 m in Peru's inter-Andean valleys.

Low Temperature: Most species are damaged by low temperatures and killed by extended freezing weather.

High Temperature: Pacay thrives at 25°C; and, with sufficient moisture, seems capable of withstanding short periods above 33°C.

Soil Type: These trees are apparently widely adaptable. They withstand soils from pH 4.0 to 8.0. They tolerate high aluminum saturation (70-90 percent) in acid soils. I. edulis and I. feuillei nodulate profusely even at pH 4.5 and are also heavily mycorrhizal (vesicular arbuscular mycorrhizae). These mycorrhizae play an important role in enabling ingas to take up phosphorus even though phosphorus is in very short supply in acid soils"  (National Research Council, 1989; p. 284).

Propagation:  Seed

Native range:  Bolivia and Peru; widely cultivated in South America (Staples & Herbst, 2005; p. 332).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
French Polynesia
Gambier Islands
Mangareva (Gambier) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Marquesas Islands
Hiva Oa Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
Naturalized
French Polynesia
Marquesas Islands
Hiva Oa Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
Naturalized
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Marquesas Islands
Tahuata (Tuhuata) Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
Naturalized
French Polynesia
Marquesas Islands
Ua Huka (Huahuna, Uahuka) Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
Naturalized
French Polynesia
Marquesas Islands
Ua Pou (Huapu, Uapou, Uapu) Island introduced
invasive
Lorence, David H./Wagner, Warren L. (2013)
Naturalized
French Polynesia
Society Islands
Huahine Island introduced
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence & R. Tahuaitu 11648 (PAP)
French Polynesia
Society Islands
Moorea Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Society Islands
Raiatea (Havai) Island introduced
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Voucher cited: J. Florence 10512 (PAP)
French Polynesia
Society Islands
Tahiti Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Tuamotu Archipelago
Raro‘ia Atoll introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Austral (Tubuai) Islands
Raivavae (Raevavae) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Austral (Tubuai) Islands
Rapa Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Austral (Tubuai) Islands
Rimatara (Rimitara) Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Austral (Tubuai) Islands
Rurutu Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
French Polynesia
Austral (Tubuai) Islands
Tubuai Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Parker, James L./Parsons, Bobby (2012) (p. 69)
"Naturalizing successfully on the windward side of the island". Voucher cited: J. Parker & R. Parsons BIED133 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1993) (voucher ID: PTBG 14729)
Taxon name on voucher: Inga feuillei
State of Hawaii
Hawaiian Islands
O‘ahu Island   Bishop Museum (U.S.A. Hawaii. Honolulu.) (1930) (voucher ID: BISH 55547)
Taxon name on voucher: Inga feuillei
Pitcairn Islands
Pitcairn Islands
Pitcairn Island introduced
invasive
Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013)
Naturalisée
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
South America (Pacific rim)
South America (Pacific rim)
Perú (Republic of) native
Macbride, J. Francis (1936) (pp. 13(3/1):23-24)


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This page was created on 23 MAR 2013 and was last updated on 6 APR 2013.